204 sourced historical events are currently published for April 4. Browse the chronology below or filter this date by place and event type. This collection is expanding, not an exhaustive account of the day.
The published April 4 chronology runs from 503 BCE to 2024, a span of 2,527 years. It contains 204 sourced records across 28 countries and 9 event categories. These figures describe the current collection, not all events that occurred on this date.
Start at the earliest published record or jump to the latest. The counts below show where this collection is concentrated.
These pairs share a category and calendar date; the pairing does not imply a historical connection.
Some events have more than one location, so country counts can overlap. Read about our sources and editorial approach.
On April 4, 503 BCE, according to the Roman triumphal lists, the consul Agrippa Menenius Lanatus celebrated a triumph in Rome after a victory over the Sabines.
The date follows the Roman triumphal lists, which identify the day before the Nones of April.
Rome, present-day Italy · War & conflict · Checked 2026-11-05
On April 4, 611, forces from the Maya kingdom of Calakmul attacked Palenque, in what is now southern Mexico. An inscription at Palenque records the attack.
Palenque, Chiapas, Mexico · Politics & society · Checked 2026-11-05
The siege of Barcelona ended on 4 April 801, when the Carolingian forces captured the city.
4 April 801 is the endpoint of the siege range, not its beginning.
Spain · War & conflict · Checked 2026-11-03
In 1268, the Byzantine Empire and the Republic of Venice agreed to temporarily end hostilities which had erupted after the Byzantine recovery of Constantinople by Emperor Michael VIII Palaiologos in 1261. Venice had enjoyed a privileged position in the Constantinople-based Latin Empire established by the Fourth Crusade in 1204, while Palaiologos had allied with Venice's main commercial rival, the Republic of Genoa, against them.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Battle of Arques was fought on 4 April 1303 in the French city of Arques between the County of Flanders and the Kingdom of France.
Location not yet verified · War & conflict · Checked 2026-10-18
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Tommaso Mocenigo (1343–1423) was doge (chief magistrate) of the Republic of Venice from 1414 until his death.
Location not yet verified · War & conflict · Checked 2026-10-18
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On 4 April 1581, Francis Drake received a knighthood awarded by Queen Elizabeth I aboard the Golden Hind at Deptford. A French diplomat performed the dubbing ceremony.
This is the knighting date, not the date Drake completed his circumnavigation.
United Kingdom · Politics & society · Checked 2026-11-03
The siege of Uman was conducted the Polish–Lithuanian–Crimean forces against the Cossack garrison of Uman, on 2–4 April 1654.
This entry records the event's end date, as given in the source infobox.
Ukraine · War & conflict · Checked 2026-10-18
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The Declaration of Breda (dated 4 April 1660) was a proclamation by Charles II of England in which he promised a general pardon for crimes committed during the English Civil War and the Interregnum for all those who recognised Charles as the lawful king; the retention by the current owners of property purchased during the same period; religious toleration; and the payment of arrears to members of the army, and that the army would be recommissioned into service under the crown.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Battle of Sideling Hill (sometimes written Sidling Hill) was an engagement in April 1756, between Pennsylvania Colonial Militia and a band of Lenape warriors who had attacked Fort McCord and taken a number of colonial settlers captive. The warriors were taking their captives back to their base at Kittanning when they were ambushed by the militia, but with the help of reinforcements, the Lenape fought off the militia and escaped.
United States · War & conflict · Checked 2026-10-18
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The 1781 Rhode Island gubernatorial election was held on April 4, 1781, in order to elect the governor of Rhode Island. Incumbent Independent governor William Greene won re-election as he ran unopposed. The exact number of votes cast in this election are unknown.
United States · Politics & society · Checked 2026-09-23
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The Capture of HMS St. Fermin was a naval engagement that took place off Málaga on 4 April 1781, during the American Revolutionary War. Spanish xebecs San Antonio and San Luis captured the sloop-of-war HMS St. Fermin.
Málaga, Spain · War & conflict · Checked 2026-09-23
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A gubernatorial election was held in Massachusetts on April 4, 1785. James Bowdoin, the former president of the Massachusetts Constitutional Convention, received more votes than any of his rivals—Thomas Cushing, the incumbent acting governor, Benjamin Lincoln, the former United States secretary of war, and Oliver Prescott, the judge of the probate court for Middlesex County—but no candidate received a majority of the votes cast.
Massachusetts, United States · Politics & society · Checked 2026-09-23
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The 1787 Rhode Island gubernatorial election was an election held on April 4, 1787, to elect the governor of Rhode Island. John Collins beat William Bradford with 72.24% of the vote.
United States · Politics & society · Checked 2026-09-23
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A gubernatorial election was held in Massachusetts on April 4, 1791. John Hancock, the incumbent governor, was re-elected against scattering opposition.
Massachusetts, United States · Politics & society · Checked 2026-09-23
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The 1792 Rhode Island gubernatorial election was held on April 4, 1792, in order to elect the governor of Rhode Island. Incumbent Anti-Federalist governor Arthur Fenner won re-election as he ran unopposed. The exact number of votes cast in this election are unknown.
United States · Politics & society · Checked 2026-09-23
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The Battle of Racławice (Polish: Bitwa pod Racławicami) was one of the first battles of the Kościuszko Uprising against Russia. It was fought on 4 April 1794 near the village of Racławice in Lesser Poland. The battle site is one of Poland's official national Historic Monuments (Pomnik historii), as designated on 1 May 2004. Its listing is maintained by the National Heritage Board of Poland.
Location not yet verified · War & conflict · Checked 2026-10-18
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The 1796 Massachusetts gubernatorial election was held on April 4. Incumbent Governor Samuel Adams was re-elected to a third term in office over Increase Sumner.
United States · Politics & society · Checked 2026-10-18
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The 1798 Rhode Island gubernatorial election was held on April 4, 1798, in order to elect the governor of Rhode Island. Incumbent Democratic-Republican governor Arthur Fenner won re-election as he ran unopposed. The exact number of votes cast in this election are unknown.
United States · Politics & society · Checked 2026-09-23
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The 1803 Massachusetts gubernatorial election was held on April 4. Federalist Governor Caleb Strong was re-elected to a fourth consecutive one-year term in office, defeating Democratic-Republican Elbridge Gerry again for the fourth time.
United States · Politics & society · Checked 2026-10-18
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The 1804 Rhode Island gubernatorial election was held on April 4, 1804, in order to elect the governor of Rhode Island. Incumbent Democratic-Republican governor Arthur Fenner won re-election as he ran unopposed. The exact number of votes cast in this election are unknown.
United States · Politics & society · Checked 2026-09-23
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The Action of 4 April 1808 was a naval engagement off the coast off Rota near Cadiz, Spain where Royal Naval frigates Mercury, Alceste and Grasshopper intercepted a large Spanish convoy protected by twenty gunboats and a train of batteries close to shore.
Bay of Cádiz, Spain · War & conflict · Checked 2026-09-23
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The 1808 Massachusetts gubernatorial election was held on April 4, 1808. Incumbent Democratic-Republican Governor James Sullivan won re-election to a second term, defeating Federalist nominee Christopher Gore.
Massachusetts, United States · Politics & society · Checked 2026-09-23
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The 1810 Rhode Island gubernatorial election was held on April 4, 1810, in order to elect the governor of Rhode Island. Incumbent Democratic-Republican governor James Fenner won re-election as he ran unopposed. The exact number of votes cast in this election are unknown.
United States · Politics & society · Checked 2026-09-23
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The 1814 Massachusetts gubernatorial election was held on April 4, 1814, in order to elect the governor of Massachusetts. Incumbent Federalist Governor Caleb Strong won re-election against Democratic-Republican candidate Samuel Dexter.
Massachusetts, United States · Politics & society · Checked 2026-09-23
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The Battle of Curapalihue (4 April 1817) fought in Chile, was a minor encounter between South American rebels and Spanish royalists, during the South American wars of independence. The result was a defeat for the royalists.
Chile · War & conflict · Checked 2026-09-23
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On April 4, 1818, the Flag Act of 1818 was approved. It set the U.S. flag at 13 stripes and 20 stars from July 4, with a star to be added for each new state.
United States · Politics & society · Checked 2026-11-05
The 1825 Massachusetts gubernatorial election was held on April 4. Governor William Eustis died in February, leaving Lieutenant Governor Marcus Morton, a Jacksonian Republican, to fill the seat on an acting basis. In the general election, Levi Lincoln Jr., an Adams Republican, had no organized opposition.
United States · Politics & society · Checked 2026-10-18
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The 1832 Rhode Island gubernatorial election was held on April 4, 1832, in order to elect the governor of Rhode Island. Incumbent National Republican governor Lemuel H. Arnold won a plurality of the vote against former Democratic-Republican governor James Fenner and incumbent Anti-Masonic Speaker of the Rhode Island House of Representatives William Sprague III.
United States · Politics & society · Checked 2026-09-23
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The 1836 Connecticut gubernatorial election was held on April 4, 1836. Incumbent governor and Democratic nominee Henry W. Edwards was re-elected, defeating former governor, senator and Whig nominee Gideon Tomlinson with 53.93% of the vote.
Connecticut, United States · Politics & society · Checked 2026-09-23
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William Henry Harrison (February 9, 1773 – April 4, 1841) was the ninth president of the United States from March to April 1841. He died 31 days into his term, making him the shortest serving president and the first president to die in office. Immediately after his death, Vice President John Tyler took over, ending the constitutional crisis that had been triggered by the question of presidential succession in the U.S. Constitution.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 1842 Connecticut gubernatorial election was held on April 4, 1842. Former Speaker of the Connecticut House of Representatives and Democratic nominee Chauncey Fitch Cleveland was elected, defeating incumbent governor and Whig nominee William W. Ellsworth with 49.94% of the vote. Cleveland won a plurality of the vote, but fell just short of a majority, by 107 votes.
Connecticut, United States · Politics & society · Checked 2026-09-23
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The 1849 Rhode Island gubernatorial election was held on April 4, 1849. Incumbent Whig governor Elisha Harris did not run for re-election. Whig nominee Henry B. Anthony defeated Democratic nominee Adnah Sackett and Free Soil nominee Edward Harris.
Rhode Island, United States · Politics & society · Checked 2026-09-23
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The Battle of Tápióbicske was a battle in the Spring Campaign of the Hungarian War of Independence (1848–1849), fought on 4 April 1849 between the Austrian Empire and the Hungarian Revolutionary Army. The Habsburg forces consisted of the I Corps of the Imperial Army led by Lieutenant Field Marshal Josip Jelačić. The Hungarians deployed I and III Corps led by General György Klapka and General János Damjanich respectively.
Location not yet verified · War & conflict · Checked 2026-10-18
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The 1853 Connecticut gubernatorial election was held on April 4, 1853. Incumbent governor and Democratic Party nominee Thomas H. Seymour defeated former state legislator and Whig nominee Henry Dutton and former state legislator and Free Soil nominee Francis Gillette with 51.01% of the vote. Seymour would resign on October 13, 1853, to become Minister to Russia, and Lieutenant Governor Charles H. Pond served as acting governor until the following May.
Connecticut, United States · Politics & society · Checked 2026-09-23
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General elections were held in Costa Rica on 4 April 1853 to elect a president for a six-year term. Incumbent president Juan Rafael Mora Porras was re-elected to a full term with 91.2% of electoral votes. According to historian Iván Molina, from this election onward and for the following four decades, electoral processes played a largely secondary role in the selection of the president, serving primarily a symbolic function of legitimization.
Costa Rica · Politics & society · Checked 2026-09-23
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The 1855 Rhode Island gubernatorial election was held on April 4, 1855, in order to elect the governor of Rhode Island. Incumbent Whig governor William W. Hoppin won re-election against Democratic nominee Americus V. Potter.
United States · Politics & society · Checked 2026-09-23
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The 1858 East Torrens colonial by-election was held on 4 April 1858 to elect one of two members for East Torrens in the South Australian House of Assembly, after sitting member Charles Bonney resigned on 26 January 1858. John Henry Barrow won the by-election unopposed.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 1859 Connecticut gubernatorial election was held on April 4, 1859. It was a rematch of the 1858 Connecticut gubernatorial election. Incumbent governor and Republican nominee William Alfred Buckingham defeated former congressman and Democratic nominee James T. Pratt with 51.19% of the vote.
Connecticut, United States · Politics & society · Checked 2026-09-23
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A gubernatorial election was held in Rhode Island on April 4, 1860. The Democratic and Conservative candidate William Sprague IV defeated the Republican former member of the Rhode Island House of Representatives from Providence Seth Padelford. At the Republican state convention, Padelford, a Radical Republican, defeated the incumbent governor Thomas G. Turner. Padelford's nomination precipitated a movement by Conservative Republicans, former Whigs, and Democrats to jointly nominate Sprague as the conservative fusion candidate.
United States · Politics & society · Checked 2026-09-23
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A proclamation introduced the markka as a currency unit for the Grand Duchy of Finland. At first it was worth one-quarter of a Russian ruble.
Finland · Technology & industry · Checked 2026-11-06
The 1862 Preston by-election was held on 4 April 1862, after the incumbent Conservative MP R. A. Cross resigned to enter a private banking business in Warrington. The by-election was won by the Conservative candidate, Thomas Hesketh. Hesketh was related to two previous MPs for the constituency, both also named Thomas Hesketh, one from the 16th century and one from the 18th.
United Kingdom · Politics & society · Checked 2026-09-23
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The 1864 Connecticut gubernatorial election was held on April 4, 1864, and the first of two gubernatorial elections in which the Republicans adopted the National Union Party name, as the national party had done during the 1864 presidential election. Incumbent governor and National Union nominee William Alfred Buckingham defeated Democratic nominee Origen S. Seymour with 53.65% of the vote.
Connecticut, United States · Politics & society · Checked 2026-09-23
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The 1866 Rhode Island gubernatorial election was held on April 4, 1866, in order to elect the governor of Rhode Island. Republican nominee and former Union Army Major General Ambrose Burnside defeated Democratic nominee Lyman Pierce.
United States · Politics & society · Checked 2026-09-23
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The 1870 Connecticut gubernatorial election was held on April 4, 1870. It was the third consecutive contest between the same two major party nominees. Former governor and Democratic nominee James E. English defeated incumbent governor and Republican nominee Marshall Jewell with 50.48% of the vote.
Connecticut, United States · Politics & society · Checked 2026-09-23
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The 1877 Rhode Island gubernatorial election was held on April 4, 1877. Republican nominee Charles C. Van Zandt defeated Democratic nominee Jerothmul B. Barnaby with 50.93% of the vote.
Rhode Island, United States · Politics & society · Checked 2026-09-23
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The 1883 Rhode Island gubernatorial election was held on April 4, 1883. Republican nominee Augustus O. Bourn defeated Democratic nominee William Sprague IV with 54.48% of the vote.
Rhode Island, United States · Politics & society · Checked 2026-09-23
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The 1885 FA Cup final was a football match between Blackburn Rovers and Queen's Park on 4 April 1885 at Kennington Oval in London. It was the fourteenth final of the world's oldest football competition, the Football Association Challenge Cup (known in the modern era as the FA Cup). Blackburn had won the Cup in the previous season while Queen's Park were competing in their second final with the previous final being previous year.
London, United Kingdom · Sport · Checked 2026-09-23
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General elections to the Cortes Generales were held in Spain on 4 April 1886. At stake were all 395 seats in the Congress of Deputies.
Spain · Politics & society · Checked 2026-09-23
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Costa Rica’s electors chose Bernardo Soto Alfaro, who had taken office the previous year after President Próspero Fernández died.
Costa Rica · Politics & society · Checked 2026-11-07
The 1888 Rhode Island gubernatorial election was held on April 4, 1888. Republican nominee Royal C. Taft defeated Democratic incumbent John W. Davis with 52.33% of the vote.
Rhode Island, United States · Politics & society · Checked 2026-09-23
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The 1893 San Diego mayoral election was held on April 4, 1893, to elect the mayor for San Diego. William H. Carlson was elected Mayor with a plurality of the votes.
Location not yet verified · Politics & society · Checked 2026-10-18
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In the Chicago mayoral election of 1893, Democrat Carter Harrison III won election, returning him the mayor's office for a (then-record) fifth non-consecutive term as mayor of Chicago. Harrison won a majority of the vote, defeating the Republican nominee, businessman Samuel W. Allerton, by a ten-point margin. He also defeated two third-party candidates: United Citizens nominee DeWitt Clinton Cregier (a previous Democrat mayor) and Socialist Labor Party nominee Henry Ehrenpreis, neither of whom received strong support.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 1894 Rhode Island gubernatorial election was held on April 4, 1894. Incumbent Republican Daniel Russell Brown defeated Democratic nominee David S. Baker with 53.15% of the vote.
Rhode Island, United States · Politics & society · Checked 2026-09-23
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The Foyot bombing was a bomb attack carried out on 4 April 1894, in Paris against the Foyot restaurant, located at 33 rue de Tournon, fifty meters from the French Senate building. This attack, which took place during the Ère des attentats (1892–1894), injured four people, including the anarchists Laurent Tailhade and Julia Miahle, when a bomb hidden in a flower pot exploded.
Paris, France · War & conflict · Checked 2026-09-23
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The 1899 San Diego mayoral election was held on April 4, 1899, to elect the mayor for San Diego. Edwin M. Capps was elected Mayor with a majority of the votes.
Location not yet verified · Politics & society · Checked 2026-10-18
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In the Chicago mayoral election of 1899, Democrat Carter Harrison IV was reelected, winning a plurality of the vote and defeating Republican nominee Zina R. Carter, former Illinois governor John Peter Altgeld, as well as several minor candidates by a double-digit margin. The election took place on April 4. Before the election, the two major parties held municipal nominating conventions to determine their nominees.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 1899 Wisconsin Supreme Court elections were held during Wisconsin's 1899 spring election and featured two elections: a regular election and a special election. In both elections, incumbents were re-elected without opposition.
United States · Politics & society · Checked 2026-10-18
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The 1900 Rhode Island gubernatorial election was held on April 4, 1900. Republican nominee William Gregory defeated Democratic nominee Nathan W. Littlefield with 54.33% of the vote.
Rhode Island, United States · Politics & society · Checked 2026-09-23
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The Columbus mayoral election of 1903 was the 54th mayoral election in Columbus, Ohio. It was held on Saturday, April 4, 1903. Democratic party incumbent mayor John N. Hinkle was defeated by Republican party nominee Robert H. Jeffrey.
Ohio, United States · Politics & society · Checked 2026-09-23
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Two strong earthquakes struck the Kresna region of Bulgaria on April 4, roughly twenty minutes apart. The first shock occurred in the morning in the Struma River valley between Kresna and Krupnik; a larger shock followed. The article assigns the pair magnitudes of 6.9 and 7.2 on the surface-wave scale, and reports more than 200 deaths. Simitli and Krupnik were destroyed, while Dzhumaya, Bansko and Razlog suffered major damage. The disaster is recorded as a doublet earthquake rather than two unrelated anniversaries. Its epicentres and effects place this event in present-day southwestern Bulgaria.
Kresna region, Bulgaria · Disasters · Checked 2026-09-23
The 1905 Kangra earthquake occurred in the Kangra Valley and the Kangra district of the Himachal Pradesh, in India on 4 April 1905. The earthquake measured 7.8 on the surface-wave magnitude scale and killed more than 20,000 people. Apart from this, most buildings in the towns of Kangra, Mcleodganj and Dharamshala were destroyed. The earthquake also had a widespread impact in Jammu and Kashmir particularly in the densely populated Kashmir valley. A total of 7,000 to 8,000 people were killed in Jammu and Kashmir with 4,000 to 5,000 deaths occurring in the Kashmir valley.
India · Disasters · Checked 2026-09-23
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The 1905 San Diego mayoral election was held on April 4, 1905, to elect the mayor of San Diego. John L. Sehon was elected mayor with a majority of the votes.
Location not yet verified · Politics & society · Checked 2026-10-18
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In the Chicago mayoral election of 1905, Democratic nominee Edward Fitzsimmons Dunne defeated Republican nominee John Maynard Harlan and Socialist nominee John Collins. This was the final regularly scheduled Chicago mayoral election for a two-year term. Subsequent elections have been for four-year terms. The general election took place on April 4. Ahead of the election, both major parties selected their nominees at nominating conventions in February.
Location not yet verified · Politics & society · Checked 2026-10-18
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On 4 April 1909, Guo Yonghuai, an aerodynamicist, was born.
Location not yet verified · Births & deaths · Checked 2026-10-26
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The 1911 Wisconsin Supreme Court election was held on Tuesday, April 4, 1911, to elect a justice to the Wisconsin Supreme Court for a ten-year term. Incumbent justice Aad J. Vinje (who had been appointed the previous year) was elected without opposition.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 1911 San Diego mayoral election was held on April 4, 1911, to elect the mayor for San Diego. Incumbent Mayor Grant Conard and James E. Wadham received the most votes in the primary election and advanced to the runoff. Wadham was then elected mayor with a majority of the votes.
Location not yet verified · Politics & society · Checked 2026-10-18
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In the 1911 Chicago mayoral election, Democrat Carter Harrison IV was elected to his fifth non-consecutive term as mayor, tying the then-record set by his father Carter Harrison Sr. for the most Chicago mayoral election victories. Harrison defeated Republican nominee Charles E. Merriam and Socialist nominee William E. Rodriguez. The election was held on April 4. On February 28, 1911, for the first time, direct primary elections were held.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 1916 Wisconsin Supreme Court election was held on Tuesday, April 4, 1916, to elect a justice to the Wisconsin Supreme Court for a ten-year term. Circuit court judge Franz C. Eschweiler prevailed in a five-candidate race, winning a plurality of the vote. Incumbent first-term justice William H. Timlin did not seek re-election, and would ultimately die soon after the election (shortly before his term would have expired).
Wisconsin, United States · Politics & society · Checked 2026-09-23
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An election for Mayor of Milwaukee was held on April 4, 1916. Incumbent mayor Gerhard Adolph Bading was defeated for re-election by Social-Democratic city attorney Daniel Hoan, who won with 51% of the vote.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 1922 Wisconsin Supreme Court special election was a special election held on Tuesday, April 4, 1922, to elect a justice to the Wisconsin Supreme Court for a partial term. The election took place after the death of John B. Winslow. Incumbent (appointed) justice Burr W. Jones won election.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The U.S. Navy's rigid airship Akron crashed off New Jersey after encountering severe weather. Three of the 76 people aboard survived.
Off the coast of New Jersey · Disasters · Checked 2026-11-06
The Battle of the Segre is the collective name of a series of battles that took place along the Segre River between 4 April 1938 and 3 January 1939 during the Spanish Civil War, after the Nationalist Faction had broken the lines of the Spanish Republican Army in the Aragon Offensive. Although seldom mentioned in historical works, it was one of the most protracted battles of the Civil War.
Aragon, Spain · War & conflict · Checked 2026-09-23
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The New Zealand Labour Party leadership election, 1940 was held on 4 April 1940 to choose the fourth leader of the New Zealand Labour Party. The election was won by Wellington Central MP Peter Fraser. It followed the death of incumbent Labour leader and Prime Minister Michael Joseph Savage.
Location not yet verified · Politics & society · Checked 2026-10-18
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The action of 4 April 1941 was a naval engagement fought during the Battle of the Atlantic during the Second World War. A German commerce raider, Thor (Schiff 10 to the Kriegsmarine, Raider E to the British), encountered the British armed merchant cruiser HMS Voltaire and sank her after a short engagement. The German crew rescued the British survivors, some of whom were repatriated and gave an account to the Admiralty.
Location not yet verified · War & conflict · Checked 2026-10-18
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On 4 April 1941, Zeng Yongyi, a folklore scholar and folk literature scholar, was born.
Location not yet verified · Births & deaths · Checked 2026-10-26
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The 1942 Copa Ibarguren was the 19th edition of a national cup of Argentina. From this edition onwards, the cup was contested by the winners of Primera División and the Copa Presidente de la Nación (a competition formed by teams from regional leagues). The final was contested by River Plate (1942 Primera División champion), and Liga Cordobesa de Fútbol ("Córdoba League"), champion of the 1942 Copa Presidente.
Argentina · Sport · Checked 2026-10-18
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The Bucharest World War II bombings were primarily Allied bombings of railroad targets and those of the Oil Campaign of World War II, but included a bombing by Nazi Germany after the 1944 coup d'état. Bucharest stored and distributed much of Ploiești's refined oil products. The first operation was a sequence of 17 aerial bombardments, starting with the one of April 4, 1944.
Location not yet verified · War & conflict · Checked 2026-10-18
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On April 4, 1945, German commander Johannes Erxleben surrendered to U.S. forces in Kassel, ending the battle for the city. American troops had advanced through Kassel after several days of fighting.
Kassel, Germany · War & conflict · Checked 2026-11-05
The East Pomeranian strategic offensive operation (Russian: Восточно-Померанская наступательная операция) was an offensive by the Soviet Red Army against the German Wehrmacht on the Eastern Front. It took place in Pomerania and West Prussia from 10 February – 4 April 1945.
This entry records the event's end date, as given in the source infobox.
Germany · War & conflict · Checked 2026-10-18
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U.S. troops liberated Ohrdruf, a subcamp of Buchenwald in Germany. It was the first Nazi camp liberated by U.S. forces.
Ohrdruf, Thuringia, Germany · War & conflict · Checked 2026-11-06
Panagiotis Poulitsas (Greek: Παναγιώτης Πουλίτσας; 9 September 1881 – 16 January 1968) was a Greek judge and archeologist who briefly served as interim Prime Minister of Greece from 4 April 1946 to 18 April 1946. He was born in Geraki, Laconia on 9 September 1881. As President of the Council of State, he took the premiership of an interim government from 4 to 18 April 1946 after the troubled 31 March 1946 elections, which were simultaneous with the reigniting of the Greek Civil War.
Location not yet verified · Politics & society · Checked 2026-10-18
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Representatives of twelve European and North American countries signed the North Atlantic Treaty in Washington, D.C., establishing the framework for NATO. The agreement placed collective defence at the centre of a new transatlantic alliance during the early Cold War. Under Article 5, an armed attack against one member in the treaty's defined area would be considered an attack against all, with each ally taking the action it deemed necessary. The treaty also committed members to peaceful dispute resolution and consultation when their security was threatened. This anniversary marks the signing of the founding agreement, rather than a later accession or military operation.
Washington, D.C., United States — signing venue · Politics & society · Checked 2026-09-23
On 4 April 1949, Shing-Tung Yau, a mathematician, was born.
China · Births & deaths · Checked 2026-10-26
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A fire broke out shortly before midnight at St. Anthony's Hospital in Effingham, Illinois, and spread through the building. The disaster spurred inspections and changes to hospital fire-safety practices.
Effingham, Illinois, United States · Disasters · Checked 2026-11-06
The 1950 Wisconsin Supreme Court special election was a special election held on Tuesday, April 4, 1950, to elect a justice to the Wisconsin Supreme Court. Incumbent justice John E. Martin (appointed in 1948 to fill the vacancy created by the death on the bench of Chester A. Fowler) won election, defeating challenger Marshall Peterson.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The al-Hamma Incident (Hebrew: תקרית אל-חמה) refers to an event on 4 April 1951 that resulted in the death of seven IDF soldiers at the hands of Syrian military forces. The action occurred during an Israeli attempt to enforce its claimed sovereignty over the demilitarized zone along the Syrian border.
Location not yet verified · War & conflict · Checked 2026-10-18
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On 4 April 1960, Andrew Lau, a film director, was born.
Hong Kong · Births & deaths · Checked 2026-10-26
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Representatives of France, Senegal and the Sudanese Republic signed agreements in Paris on the transfer of powers to the Mali Federation. The federation formally became independent in June.
Paris, France · Politics & society · Checked 2026-11-06
The 1961 Dallas mayoral election was held on April 4, 1961.
Dallas, United States · Politics & society · Checked 2026-09-23
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The 1961 Wisconsin Supreme Court election was held on Tuesday, April 4, 1961 to elect a justice to the Wisconsin Supreme Court for a ten-year term. The April general election was preceded by a nonpartisan primary election on March 7, 1961. Circuit Court judge Myron L. Gordon won election to succeed incumbent justice John E. Martin (who did not seek re-election).
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 1961 Los Angeles mayoral election took place on April 4, 1961, with a runoff election on May 31, 1961. Incumbent Norris Poulson was defeated by Sam Yorty, a former U.S. Representative. Municipal elections in California, including Mayor of Los Angeles, are officially nonpartisan; candidates' party affiliations do not appear on the ballot.
Location not yet verified · Politics & society · Checked 2026-10-18
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The first round of the special election for a U.S. Senate seat in Texas was held on 4 April 1961. John Tower and William Blakley advanced to the runoff on 27 May.
This entry records the first round, not the runoff.
Texas · Politics & society · Checked 2026-11-03
Bye Bye Birdie is a 1963 American musical romantic comedy film directed by George Sidney from a screenplay by Irving Brecher, based on Michael Stewart's book of the 1960 musical of the same name. It also features songs by composer Charles Strouse and lyricist Lee Adams and a score by Johnny Green. Produced by Fred Kohlmar, the film stars Janet Leigh, Dick Van Dyke, Ann-Margret, Maureen Stapleton, Paul Lynde, Bobby Rydell, Jesse Pearson and Ed Sullivan.
Location not yet verified · Arts & culture · Checked 2026-10-18
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General elections were held in Western Samoa on 4 April 1964, the first since independence in 1962. All candidates ran as independents. Following the elections, Fiamē Mataʻafa Faumuina Mulinuʻu II remained prime minister.
Samoa · Politics & society · Checked 2026-09-23
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On April 4, 1965, North Vietnamese MiG-17 fighters intercepted U.S. aircraft during a raid on the Thanh Hóa Bridge. The bridge was a transport crossing in North Vietnam.
Thanh Hóa, Vietnam · War & conflict · Checked 2026-11-05
The Chicago mayoral election of 1967 was held on April 4, 1967. The election saw Richard J. Daley being elected to a fourth term as mayor. Daley's main opponent was Republican nominee John L. Waner, who he defeated by a landslide 48% margin. The election was preceded by primary elections held on February 28, 1967 to determine the nominees of both the Democratic Party and Republican Party.
Chicago, United States · Politics & society · Checked 2026-09-23
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The 1967 Wisconsin Supreme Court election was held on Tuesday, April 4, 1967, to elect a justice to the Wisconsin Supreme Court for a ten-year term. It was preceded by a primary election on March 7, 1967. In the election, Robert W. Hansen defeated incumbent chief justice George R. Currie. The election was the first instance in the state's history in which a chief justice of the Supreme Court was unseated in an election.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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Martin Luther King Jr. was an American clergyman and civil rights leader who was fatally shot at the Lorraine Motel in Memphis, Tennessee, on April 4, 1968. King was rushed to St. Joseph's Hospital, where he was pronounced dead at 7:05 p.m. that evening. He was a prominent leader of the Civil Rights Movement and Nobel Peace Prize laureate who was known for his use of nonviolence and civil disobedience. James Earl Ray, a fugitive from the Missouri State Penitentiary, was arrested on June 8, 1968, in London at Heathrow Airport, extradited to the United States, and charged with the crime.
Tennessee, United States · War & conflict · Checked 2026-09-23
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Apollo 6 (April 4, 1968), also known as AS-502, was the third and final uncrewed flight in the United States' Apollo program and the second test of the Saturn V launch vehicle. The Saturn V's utilization during the mission qualified it for use during human spaceflight, and it was used beginning on Apollo 8 in December 1968.
Location not yet verified · Exploration · Checked 2026-10-18
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Martin Luther King Jr. (born Michael King Jr.; January 15, 1929 – April 4, 1968) was an American civil rights activist and Baptist minister who was a prominent leader of the civil rights movement from 1955 until his assassination in 1968. He advanced civil rights for people of color in the United States through the use of nonviolent resistance and civil disobedience against Jim Crow laws and other forms of legalized discrimination, which most commonly affected African Americans.
Location not yet verified · War & conflict · Checked 2026-10-18
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A surgical team led by Denton Cooley implanted a total artificial heart in Houston. The device kept the patient alive until a donor heart became available.
Houston, Texas, United States · Science & discovery · Checked 2026-11-06
Operation Homecoming was the return of 591 American prisoners of war (POWs) held by North Vietnam after the Paris Peace Accords, which ended United States involvement in the Vietnam War.
A Lockheed C-141 Starlifter, dubbed the Hanoi Taxi, makes the last flight of Operation Homecoming.
Location not yet verified · War & conflict · Checked 2026-10-18
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The original World Trade Center (WTC) was a complex of seven buildings in the Financial District of Lower Manhattan in New York City. Built primarily between 1966 and 1975, it was dedicated on April 4, 1973, and was destroyed on September 11, 2001, after two hijacked planes were flown into the towers in a coordinated terrorist attack.
Location not yet verified · Technology & industry · Checked 2026-10-18
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On 4 April 1975, a Lockheed C-5A Galaxy participating in the first mission of Operation Babylift crashed on approach during an emergency landing at Tan Son Nhut Air Base, South Vietnam. The cause was ascribed to loss of flight control due to explosive decompression and structural failure.
Location not yet verified · Disasters · Checked 2026-10-18
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Microsoft Corporation is an American multinational technology company headquartered in Redmond, Washington. The company became influential in the rise of personal computers through software like Windows and has since expanded into areas such as Internet services, cloud computing, artificial intelligence, video gaming, and more. A Big Tech company, Microsoft is the largest software company by revenue, one of the most valuable public companies, and one of the most valuable brands globally.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 1976 Baden-Württemberg state election was held on 4 April 1976 to elect the members of the 6th Landtag of Baden-Württemberg. The incumbent Christian Democratic Union (CDU) government under Minister-President Hans Filbinger was re-elected, retaining its majority.
Baden-Württemberg, Germany · Politics & society · Checked 2026-09-23
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Southern Airways Flight 242 made a forced landing on a highway near New Hope, Georgia, on April 4 after a severe thunderstorm disabled both engines. Hail damaged the aircraft as the crew tried to fly toward Atlanta, and the jet struck roadside structures during its attempted landing. Sixty-three people aboard the aircraft and nine people on the ground died; twenty-two aboard survived. The National Transportation Safety Board concluded that water and hail ingestion, combined with thrust lever movement, caused the engines' loss of power. The crash remains the deadliest aviation accident in Georgia and led to a detailed investigation of weather information and flight decisions.
New Hope, Georgia, United States · Disasters · Checked 2026-09-23
On 4 April 1977, the U.S. Supreme Court decided Rosebud Sioux Tribe v. Kneip. It held that federal laws enacted in 1904, 1907 and 1910 showed Congress’s intent to reduce the boundaries of the Rosebud Indian Reservation.
This is the decision date; oral argument took place on 12 January 1977.
Location not yet verified · Politics & society · Checked 2026-11-04
Zulfikar Ali Bhutto NPk HPk (5 January 1928 – 4 April 1979) was a Pakistani barrister, and statesman who served as the fourth president of Pakistan from 1971 to 1973, and as the ninth prime minister of Pakistan from 1973 until his overthrow in 1977. He was the founder and first chairman of the Pakistan People's Party (PPP) from 1967 until his execution in 1979.
Location not yet verified · War & conflict · Checked 2026-10-18
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Direct passenger trains between Guangzhou and Hung Hom in Kowloon resumed after a break of nearly 30 years.
Guangzhou, China · Technology & industry · Checked 2026-11-06
The H-3 airstrike (Persian: عملیات اچ۳) was a surprise air attack by the Iranian Air Force during the Iran–Iraq War on 4 April 1981 against the Iraqi Air Force's H-3 Air Base in western Iraq. The Iranians destroyed at least 48 Iraqi aircraft on the ground with no losses of their own. Based on the results achieved, it is considered one of the most successful raids in the history of aerial warfare.
Location not yet verified · War & conflict · Checked 2026-10-18
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STS-6 was the sixth NASA Space Shuttle mission and the maiden flight of the Space Shuttle Challenger. Launched from Kennedy Space Center on April 4, 1983, the mission deployed the first Tracking and Data Relay Satellite, TDRS-1, into orbit, before landing at Edwards Air Force Base on April 9, 1983. STS-6 was the first Space Shuttle mission during which a Extravehicular activity was conducted, and hence was the first in which the Extravehicular Mobility Unit (EMU) was used.
Location not yet verified · Exploration · Checked 2026-10-18
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Garuda Indonesia Flight 035 was a domestic Garuda Indonesia flight that struck a pylon and crashed on approach to Medan-Polonia Airport on 4 April 1987. Out of the 45 passengers and crew on board, 23 were killed in the accident.
Location not yet verified · Disasters · Checked 2026-10-18
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The 1989 Wisconsin Supreme Court election was held on April 4, 1989, to elect a justice to the Wisconsin Supreme Court for a ten-year term. Incumbent justice Shirley Abrahamson was re-elected over Ralph Adam Fine. The campaign was described to be a "heated race".
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 1989 St. Louis mayoral election was held on April 4, 1989 to elect the mayor of St. Louis, Missouri. It saw the re-election of Vincent C. Schoemehl to a third term. The election was preceded by party primaries on March 7.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Chicago mayoral election of 1989 saw Democratic nominee Richard M. Daley win election to the remainder of an unexpired mayoral term with a 14% margin of victory. This marked a return for the Daley family to the office of mayor. Daley was elected over Alderman Timothy Evans, the nominee of the newly formed Harold Washington Party, and the Republican nominee Ed Vrdolyak.
Location not yet verified · Politics & society · Checked 2026-10-18
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China’s National People’s Congress adopted and promulgated the Hong Kong Basic Law on 4 April 1990. The law later took effect on 1 July 1997; the adoption and commencement are separate dates.
Adoption and promulgation date; commencement followed on 1 July 1997.
China · Politics & society · Checked 2026-10-25
The Neath by-election, 1991 was a by-election held on 4 April 1991 for the British House of Commons constituency of Neath in Wales. It was won by the Labour Party candidate Peter Hain.
Wales, United Kingdom · Politics & society · Checked 2026-09-23
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Four gunmen took employees and customers hostage at a Good Guys! electronics store in Sacramento, California, on 4 April 1991. Three hostages and three of the gunmen died during the crisis.
Sacramento, California · Politics & society · Checked 2026-11-03
On April 4, 1991, a Piper Aerostar propeller-driven aircraft collided in mid-air with a Bell 412 helicopter over Merion Elementary School in Lower Merion Township, a suburb west of Philadelphia, in southeast Pennsylvania. All five people in both aircraft were killed, including United States Senator John Heinz, the sole passenger of the Piper. On the ground, two schoolchildren were killed by falling debris and five people were injured.
Location not yet verified · Disasters · Checked 2026-10-18
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WrestleMania IX was a 1993 professional wrestling pay-per-view (PPV) event produced by the World Wrestling Federation (WWF, now WWE). It was the ninth annual WrestleMania and took place on April 4, 1993, at Caesars Palace in Paradise, Nevada in the Las Vegas area. It was the first WrestleMania event held outdoors. WrestleMania IX was built around two main storylines.
Las Vegas, United States · Nevada, United States · Arts & culture · Checked 2026-09-24
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KLM Cityhopper Flight 433 was a Saab 340B, registered as PH-KSH, which crashed during an emergency landing on 4 April 1994, resulting in the death of 3 occupants, including the captain. Flight 433 was a routine scheduled flight from Amsterdam, the Netherlands, to Cardiff, Wales, United Kingdom. The accident was caused by inadequate pilot training and a faulty sensor, leading to loss of control during go-around.
Location not yet verified · Disasters · Checked 2026-10-18
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Netscape Communications Corporation (originally Mosaic Communications Corporation) was an American independent computer services company with headquarters in Mountain View, California, and then Dulles, Virginia. Its Netscape web browser was once dominant but lost to Internet Explorer and other competitors in the first browser war, with its market share falling from more than 90 percent in the mid-1990s to less than one percent in 2006.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 1995 Brown County, Wisconsin Executive election took place on April 4, 1995. Incumbent County Executive Tom Cuene ran for re-election to a third term. He was challenged by County Supervisor Steve Lasee. Because Cuene and Lasee were the only two candidates to file, the primary election was cancelled and the candidates proceeded to the general election.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 1995 Wisconsin Spring Election was held in the U.S. state of Wisconsin on April 4, 1995.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 1995 Colorado Springs mayoral election took place on April 4, 1995, to elect the mayor of Colorado Springs, Colorado. The election was held concurrently with various other local elections. The election was officially nonpartisan. It saw the reelection of incumbent mayor Robert M. Issac to a fifth term.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Chicago mayoral election of 1995 resulted in the re-election of Democratic Party nominee incumbent Richard M. Daley over independent candidate Roland Burris, with 359,466 votes to Burris's 217,024. Daley won 60.1% of the total vote, winning by a landslide 24-point margin. The Republican candidate, Raymond Wardingley, fared poorly with only 2.8% of the vote. A fourth-place candidate, Harold Washington Party nominee Lawrence Redmond, won 0.9% of the votes.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Hubble Space Telescope observed the cloud of gas and dust around Comet Hyakutake’s nucleus. The observations were part of a study of how sunlight affects water molecules in comets.
Location not yet verified · Science & discovery · Checked 2026-11-07
The CMLL International Gran Prix (1997) was a lucha libre, or professional wrestling, tournament produced and scripted by the Mexican professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL; "World Wrestling Council" in Spanish) which took place on April 4, 1997 in Arena México, Mexico City, Mexico, CMLL's main venue. The 1997 International Gran Prix was the fourth time CMLL has held an International Gran Prix tournament since 1994.
Mexico City, Mexico · Arts & culture · Checked 2026-09-23
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Columbia launched from Kennedy Space Center carrying the Microgravity Science Laboratory. Concern about a fuel cell later brought the shuttle back early.
Kennedy Space Center, Florida, United States · Science & discovery · Checked 2026-11-06
The 1998 Coupe de la Ligue final was a football match held at Stade de France, Saint-Denis on 4 April 1998, that saw Paris Saint-Germain defeat Bordeaux in a penalty shoot-out.
Location not yet verified · Sport · Checked 2026-10-18
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The 2000 Wisconsin Supreme Court election was held on April 4, 2000, to elect a justice to the Wisconsin Supreme Court for a ten-year term. Incumbent justice Diane S. Sykes (who had been appointed in 1999) was re-elected, defeating challenger Louis B. Butler by a wide margin.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 2000 Pennsylvania Democratic presidential primary took place on April 4, 2000, as one of two primaries on the same day in the Democratic primaries for the 2000 United States presidential election. The Pennsylvania primary was a closed primary, with the state awarding 191 delegates, of whom 186 were pledged delegates allocated on the basis of the primary results.
Pennsylvania, United States · Politics & society · Checked 2026-09-23
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The 2000 Wisconsin Democratic presidential primary took place on April 4, 2000 as part of the Democratic Party primaries for the 2000 presidential election. The Wisconsin primary was an open primary, with the state awarding 93 delegates to the 2000 Democratic National Convention, of which 77 were pledged delegates allocated on the basis of the results of the primary.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 2000 Milwaukee mayoral election was held on April 4, 2000, in order to elect the mayor of Milwaukee. Incumbent mayor John Norquist was re-elected to a fourth term in office.
Location not yet verified · Politics & society · Checked 2026-10-18
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On April 4, 2000, Wisconsin held its spring election. The ballot included a contested Wisconsin Supreme Court election, presidential preference primaries for both major parties, and nonpartisan local and judicial offices.
This records the spring election, separate from the November general election.
United States · Politics & society · Checked 2026-10-23
The 2000 Anchorage mayoral election was held on April 4 and May 2, 2000, to elect the mayor of Anchorage, Alaska. It saw election of George Wuerch. Incumbent mayor Rick Mystrom was term-limited. Proposition 10, passed in 1999, required mayoral candidates to receive 50% of the votes cast in a race to avoid a runoff.
This entry records the first round, as dated in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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An indirect presidential election was held in Moldova on 4 April 2001.
Moldova · Politics & society · Checked 2026-09-23
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The Angolan Civil War (Portuguese: Guerra Civil Angolana) was a civil war in Angola, beginning in 1975 and continuing, with interludes, until 2002. The war began immediately after Angola became independent from Portugal in November 1975. It was a power struggle between two former anti-colonial guerrilla movements, the communist People's Movement for the Liberation of Angola (MPLA) and the anti-communist National Union for the Total Independence of Angola (UNITA).
This entry records the event's end date, as given in the source infobox.
Angola · War & conflict · Checked 2026-10-18
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The Battle of Najaf was a major battle in the 2003 U.S. invasion of Iraq. The first stage of the battle was fought when the U.S. 3rd Infantry Division fought to surround the town. The second stage was fought when soldiers from the U.S. 101st Airborne Division fought to clear and secure the city.
This entry records the event's end date, as given in the source infobox.
Iraq · War & conflict · Checked 2026-10-18
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The Battle of Samawah took place during the 2003 invasion of Iraq as American troops fought to clear the city of Iraqi forces. The city had been bypassed during the advance on Baghdad, leaving the task of clearing it to American paratroopers of the 82nd Airborne Division with mechanized infantry and armor provided by units of the 1st Battalion, 41st Infantry Regiment, and 2-70th Armor Battalions, along with 3rd platoon 59th Chemical Company tasked with finding and removing any potential chemical or biological weapons.
This entry records the event's end date, as given in the source infobox.
Iraq · War & conflict · Checked 2026-10-18
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The Battle of the Karbala Gap occurred during the 2003 invasion of Iraq. The Karbala Gap is a 20–25-mile wide strip of land with the Euphrates River to the east and Lake Razazah to the west. This strip of land was recognized by Iraqi commanders as a key approach to Baghdad, and was defended by the Medina and Bakhtnisar Divisions of the Iraqi Republican Guard.
This entry records the event's end date, as given in the source infobox.
Iraq · War & conflict · Checked 2026-10-18
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The Siege of Sadr City was a blockade of the Shi'a district of northeastern Baghdad carried out by US and Iraqi government forces in an attempt to destroy the main power base of the insurgent Mahdi Army in Baghdad. The siege began on 4 April 2004 – later dubbed "Black Sunday" – with an uprising against the Coalition Provisional Authority following the government banning of a newspaper published by Muqtada Al-Sadr's Sadrist Movement.
Iraq · War & conflict · Checked 2026-09-23
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The 2004 National Soccer League Grand Final was held on 4 April 2004 between Parramatta Power and Perth Glory at Parramatta Stadium. Parramatta Power had gained home-ground advantage by beating Perth Glory in the major semi final, while Perth earned their place with a win over Adelaide United in the preliminary final. Perth won the match 1–0, with Nik Mrdja scoring a golden goal in extra time.
Location not yet verified · Sport · Checked 2026-10-18
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On April 4, 2004, the Mahdi Army launched an offensive in Iraq, including in Najaf, Kufa and Kut. Its fighters moved to take control of public buildings and police stations. This was one of several outbreaks of fighting in Iraq that spring.
Iraq · War & conflict · Checked 2026-11-05
An indirect presidential election was held in Moldova on 4 April 2005.
Moldova · Politics & society · Checked 2026-09-23
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The Ligurian regional election of 2005 took place on 3–4 April 2005. Claudio Burlando (Democrats of the Left) defeated incumbent Sandro Biasotti (an independent close to Forza Italia).
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Venetian regional election of 2005 took place on 3–4 April 2005. Giancarlo Galan (Forza Italia, House of Freedoms) was re-elected for the third time in a row President of the Region, but the support for him was diminished by the presence of a third candidate, Giorgio Panto, who picked votes both from the centre-right and the Venetist camps, and of a fourth candidate representing the far right, Roberto Bussinello.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Italian regional elections of 2005 were held on 3–4 April. The elections were a major victory (11–2) for the centre-left coalition The Union, led by Romano Prodi. The centre-right coalition, which had been in power at the national level since 2001, was defeated in all the regions it governed except for its strongholds, Lombardy and Veneto.
This entry records the event's end date, as given in the source infobox.
Italy · Politics & society · Checked 2026-10-18
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The Apulian regional election of 2005 took place on 3–4 April 2005. Nichi Vendola (Communist Refoundation Party) defeated incumbent Raffaele Fitto (Forza Italia). The success of Vendola came somewhat unexpected. In a Southern Italian Region, expected to be morally conservative, Vendola, a communist and homosexual, defeated Fitto, a conservative Christian democrat. Vendola was the first candidate ever to be appointed by its coalition through a primary election instead of agreements between parties.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2005 Lombard regional election took place on 3–4 April 2005. The 8th term of the Regional Council was chosen. Roberto Formigoni (Forza Italia) was re-elected for the third time in a row President, defeating Riccardo Sarfatti.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Campania regional election of 2005 took place on 3–4 April 2005. Antonio Bassolino (Democrats of the Left, then Democratic Party) was re-elected defeating Italo Bocchino (National Alliance) by a landslide.
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Location not yet verified · Politics & society · Checked 2026-10-18
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The 2005 Calabrian regional election took place on 3–4 April 2005. Agazio Loiero (DL, The Union) was elected President of the Region by a landslide.
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Location not yet verified · Politics & society · Checked 2026-10-18
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The 2005 Piedmontese regional election took place on 3–4 April 2005. Mercedes Bresso of the Democrats of the Left defeated the incumbent Enzo Ghigo of Forza Italia.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Emilia-Romagna regional election of 2005 took place on 3–4 April 2005. The incumbent President Vasco Errani, a member of the social democratic Democrats of the Left, was re-elected defeating by a landslide Carlo Monaco, the candidate of the centre-right coalition led by Forza Italia.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Lazio regional election of 2005 took place on 3–4 April 2005. Piero Marrazzo (Independent of The Union) defeated incumbent Francesco Storace (AN, House of Freedoms). The defeat in Lazio for House of Freedoms was especially important as the centre-right expected to maintain control of the Region. Storace, a leading member in the centre-right, was subsequently granted the status of Minister of Public Health in Berlusconi III Cabinet.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Abruzzo regional election of 2005 took place on 3–4 April 2005. Ottaviano Del Turco (Italian Democratic Socialists, then Democratic Party) defeated incumbent Giovanni Pace (National Alliance) by a landslide.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Marche regional election of 2005 took place on 3–4 April 2005. Gian Mario Spacca (The Daisy, then Democratic Party) defeated Francesco Massi (Union of Christian and Centre Democrats, at the time, now member of The People of Freedom) by a landslide.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Tuscan regional election of 2005 took place on 3–4 April 2005. Incumbent Claudio Martini (Democrats of the Left) defeated Alessandro Antichi (Forza Italia) by a landslide.
This entry records the event's end date, as given in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2006 Tulsa mayoral election was held on April 4, 2006, to elect the mayor of Tulsa, Oklahoma. Partisan primary elections were held on March 7, 2006. Incumbent Republican Bill LaFortune ran for re-election. He was defeated in the general election by Democratic nominee Kathy Taylor, who became the second female mayor of Tulsa after Susan Savage.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2006 Anchorage mayoral election was held on April 4, 2006, to elect the mayor of Anchorage, Alaska. It saw reelection of Mark Begich. Since Begich had received more than a 45% plurality of the vote, no runoff was necessary. Begich retired as mayor on January 3, 2009, after having been elected to the United States Senate.
Location not yet verified · Politics & society · Checked 2026-10-18
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Take No Prisoners (2009) was a professional wrestling pay-per-view event produced by Ring of Honor. It took place on April 4, 2009 at the George R. Brown Convention Center in Houston, Texas, and aired on pay-per-view on June 12, 2009. There were seven matches that took place on the card.
Houston, United States · Texas, United States · Arts & culture · Checked 2026-09-23
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On 4 April 2009, Team Bath defeated Galleria Mavericks 54–46 in the Netball Superleague Grand Final at Coventry Skydome in Coventry, United Kingdom. It was Team Bath’s third title and the third final between the two teams.
Coventry Skydome, Coventry, United Kingdom · Sport · Checked 2026-11-01
Presidential elections were held in Slovakia in March and April 2009, the country's third direct presidential elections. After no candidate received a majority of the vote in the first round on 21 March, the second round on 4 April saw Ivan Gašparovič become the first Slovak president to be re-elected, defeating opposition candidate Iveta Radičová by 56% to 44%.
This entry records the second round, as dated in the source infobox.
Slovakia · Politics & society · Checked 2026-10-18
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WWE Hall of Fame (2009) was the event which featured the introduction of the 10th class to the WWE Hall of Fame. The event was produced by World Wrestling Entertainment (WWE) on April 4, 2009, from the Toyota Center in Houston, Texas. The event took place the same weekend as WrestleMania 25. The event was hosted by Jerry Lawler and Todd Grisham.
United States · Arts & culture · Checked 2026-10-18
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The 2010 Baja California earthquake (also known as 2010 Easter earthquake, 2010 Sierra El Mayor earthquake, or 2010 El Mayor–Cucapah earthquake) occurred on April 4 (Easter Sunday) with a moment magnitude of 7.2 and a maximum Mercalli intensity of IX (Violent). The shock originated at 15:40:41 local time (3:40:41 PM PDT) south of Guadalupe Victoria, Baja California, Mexico. The 89-second quake was widely felt throughout northwest Mexico and southern California.
Location not yet verified · Disasters · Checked 2026-10-18
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On 4 April 2011, Georgian Airways Flight 834, a Bombardier CRJ100 passenger jet of Georgian Airways operating a domestic flight from Kisangani to Kinshasa in the Democratic Republic of the Congo (DRC), crashed while attempting to land at Kinshasa Airport. The aircraft, which was chartered by the United Nations, was trying to land during a thunderstorm. Of the 33 people on board, only one person survived.
Democratic Republic of the Congo · Disasters · Checked 2026-09-23
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The First M23 rebellion was an armed conflict in North Kivu, Democratic Republic of the Congo, that occurred between the March 23 Movement (M23) rebel group and Congolese government forces between 4 April 2012 and 7 November 2013. It ended when a peace agreement was made among eleven African nations, and the M23 troops surrendered in Uganda.
North Kivu, Democratic Republic of the Congo · War & conflict · Checked 2026-09-23
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A residential building collapsed in Shil Phata, in the Mumbra area of Thane district, Maharashtra. The collapse killed dozens of people and prompted a rescue operation.
Shil Phata, Thane district · Disasters · Checked 2026-11-05
Supercard of Honor VIII was the 8th Supercard of Honor professional wrestling live event produced by Ring of Honor (ROH), which took place on April 4, 2014, at the John A. Alario Sr.
Location not yet verified · Arts & culture · Checked 2026-10-18
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UFC Fight Night: Mendes vs. Lamas (also known as UFC Fight Night 63) was a mixed martial arts event held on April 4, 2015, at the Patriot Center in Fairfax, Virginia.
Location not yet verified · Sport · Checked 2026-10-18
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The 2016 Saskatchewan general election, was held on April 4, 2016, to elect members of the Legislative Assembly of Saskatchewan. The Lieutenant Governor dissolved the Legislature on March 8, 2016, setting the election date for April 4. The election resulted in the Saskatchewan Party winning its third majority government.
Location not yet verified · Politics & society · Checked 2026-10-18
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Legislative Assembly elections were held in 2016 for all 294 seats of the Vidhan Sabha in the Indian state of West Bengal. The All India Trinamool Congress under Mamata Banerjee won 211 seats, and thus returned to power with an enhanced majority. As in the 2011 election, the election was held in six phases, with the first phase divided into two days.
This entry records the event's start date, as given in the source infobox.
India · Politics & society · Checked 2026-10-18
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The 2017 Wisconsin Spring Election was held in the U.S. state of Wisconsin on April 4, 2017. The top of the ballot was the election for state Superintendent of Public Instruction. There was also an uncontested election for Wisconsin Supreme Court, three uncontested elections for Wisconsin Court of Appeals, and several other nonpartisan local and judicial elections. There were also a number of local referendums for school funding.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The Khan Shaykhun chemical attack took place on 4 April 2017 on the town of Khan Shaykhun in the Idlib Governorate of Syria. The town was reported to have been struck by an airstrike by government forces followed by massive civilian chemical poisoning. The release of a toxic gas, which included sarin, or a similar substance, killed at least 89 people and injured more than 541, according to the opposition Idlib Health Directorate.
Location not yet verified · War & conflict · Checked 2026-10-18
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The 2017 St. Louis mayoral election was held on April 4, 2017, to elect the mayor of St. Louis, Missouri. Incumbent Mayor Francis Slay chose not to run for reelection. Slay, who was serving his fourth term as mayor, indicated in March 2016 that he would run for reelection, but announced in April 2016 that he would not run for a fifth term.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2017 North Las Vegas mayoral election was held on April 4, 2017, to elect the mayor of North Las Vegas, Nevada. It saw the re-election of John Jay Lee.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2017 Henderson mayoral election was held on April 4, 2017, to elect the mayor of Henderson, Nevada. It saw the election of Democrat Debra March.
Location not yet verified · Politics & society · Checked 2026-10-18
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Rise of the Renegades (2019) was a professional wrestling supercard event produced by Major League Wrestling (MLW), which took place on April 4, 2019, at the Melrose Ballroom in Queens, New York City, New York. The event was a television taping for MLW Fusion, with Battle Riot II airing as a live Fusion special the following day.
New York, United States · New York City, United States · Arts & culture · Checked 2026-09-23
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United We Stand was a professional wrestling internet pay-per-view (iPPV) event produced by Impact Wrestling that took place on April 4, 2019 in Rahway, New Jersey. It was the second event in the 2019 Impact Wrestling pay-per-view schedule. Wrestlers from Lucha Libre AAA Worldwide (AAA) and Lucha Underground – with whom Impact has partnerships with – as well as stars from Major League Wrestling (MLW), Dragon Gate and Wrestle Pro also appeared on the card.
New Jersey, United States · Arts & culture · Checked 2026-09-23
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The Western Libya campaign was a military campaign initiated on 4 April 2019 by the Operation Flood of Dignity (Arabic: عملية طوفان الكرامة) of the Libyan National Army (LNA), which represents the Libyan House of Representatives, to capture the western region of Libya and eventually the capital Tripoli held by the United Nations Security Council-recognised Government of National Accord (GNA).
Libya · War & conflict · Checked 2026-09-23
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A by-election for the United Kingdom parliamentary constituency of Newport West was held on 4 April 2019, following the death of incumbent Labour Party MP Paul Flynn. Labour candidate Ruth Jones held the seat for the party, albeit with a reduced majority.
Location not yet verified · Politics & society · Checked 2026-10-18
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The Battle of Gharyan, which unfolded from April 2019 to June 2019, was a significant conflict in the ongoing struggle for control in Libya. The opposing forces were the Libyan National Army (LNA), led by General Khalifa Haftar, and the Government of National Accord (GNA), headed by Prime Minister Fayez al-Sarraj.
This entry records the event's start date, as given in the source infobox.
Libya · War & conflict · Checked 2026-10-18
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The 2020 Tajik Supercup was the 11th Tajik Supercup, an annual Tajik football match played between the winners of the previous season's Tajikistan Higher League and Tajikistan Cup. The match was contested by 2019 League and Cup champions Istiklol, and the league runners-up Khujand. It was held at the Pamir Stadium in Dushanbe on 4 April.
Location not yet verified · Sport · Checked 2026-10-18
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Flags flew at half-mast across China and people observed three minutes of silence to remember those who had died in the COVID-19 outbreak.
China · Politics & society · Checked 2026-11-06
The parliament of Kosovo held indirect elections for president of Kosovo on 3 and 4 April 2021. The elections successfully concluded after three rounds, with Vjosa Osmani winning 71 votes out of a total possible 120. Three political parties boycotted the vote. Nasuf Bejta, also a member of Guxo, the political party Osmani founded, was the only other candidate who received a vote during any of the other rounds.
Kosovo · Politics & society · Checked 2026-09-23
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The Siege of Chernihiv was a military engagement in the city of Chernihiv, in Chernihiv Oblast in the north of Ukraine. It began on 24 February 2022, as part of the northern Ukraine offensive, during the 2022 Russian invasion of Ukraine. On 4 April 2022, Ukrainian authorities stated that the Russian military had left Chernihiv Oblast. The city was about 70% destroyed due to the siege.
This entry records the event's end date, as given in the source infobox.
Ukraine · War & conflict · Checked 2026-10-18
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The 2023 Wisconsin Supreme Court election was held on Tuesday, April 4, 2023, to elect a justice to the Wisconsin Supreme Court for a ten-year term. Milwaukee County circuit judge Janet Protasiewicz defeated former Wisconsin Supreme Court justice Daniel Kelly, effectively flipping the ideological balance of the court from a conservative to liberal majority.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 2023 Brown County, Wisconsin Executive election took place on April 4, 2023. Incumbent County Executive Troy Streckenbach ran for re-election to a fourth term. He faced no opposition and was re-elected unopposed.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 2023 Denver mayoral election was held on April 4, 2023, to elect the mayor of Denver, Colorado, with a runoff held on June 6. The election was officially nonpartisan and was held concurrently with elections for the Denver City Council, as well as city auditor and city clerk and recorder. Incumbent mayor Michael Hancock was term-limited and could not seek a fourth term in office.
Denver, United States · Politics & society · Checked 2026-09-23
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The 2023 Wisconsin Spring Election was held in the U.S. state of Wisconsin on April 4, 2023. The featured race at the top of the ticket was for an open seat on the Wisconsin Supreme Court, which became the most expensive judicial election in history. Several other nonpartisan local and judicial offices were also decided on the April 4 ballot, including mayoral elections in some of Wisconsin's larger cities—Green Bay, Madison, and Racine.
Wisconsin, United States · Politics & society · Checked 2026-09-23
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The 2023 Chicago aldermanic election took place in two rounds on February 28 and April 4, 2023, to elect 50 alderpersons to the Chicago City Council. Each alderperson represents one of Chicago's 50 wards. The elections are non-partisan and use a two-round system where the top two finishers compete in a second-round runoff if no candidate receives more than 50% of the vote in the first round.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2023 Los Angeles special election was held on April 4, 2023, with a runoff occurring on June 27, 2023. Voters will elect a candidate in a nonpartisan primary, with runoff elections potentially scheduled. One of the fifteen seats on the Los Angeles City Council was up for election due to the vacancy of one member, councilwoman Nury Martinez of District 6, who resigned in the wake of the 2022 Los Angeles City Council scandal.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2023 Colorado Springs mayoral election was held on April 4, 2023, to elect the mayor of Colorado Springs, Colorado, with a runoff scheduled for May 16. Incumbent mayor John Suthers was term-limited and could not seek a third term in office. The election was officially nonpartisan. A wide field of candidates filed to run in the election, including several members of municipal government.
Location not yet verified · Politics & society · Checked 2026-10-18
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Springfield, Missouri held an election for mayor on April 4, 2023. Incumbent mayor Ken McClure faced off against fellow candidate Melanie Bach. McClure was re-elected mayor by a margin of roughly six percentage points, winning 53.18% to Bach’s 46.82%. Springfield mayoral elections are nonpartisan and candidates are not affiliated with a specific party on ballots.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2023 Chicago mayoral election was held on February 28, 2023, to elect the mayor of Chicago, Illinois. With no candidate receiving a majority of votes in the initial round of the election, a runoff election was held on April 4. This two-round election took place alongside other 2023 Chicago elections, including races for City Council, city clerk, city treasurer, and police district councils.
This entry records the runoff, as dated in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2023 St. Louis aldermanic elections were held in two rounds, with nonpartisan blanket approval voting primaries on March 7 and general elections on April 4. All 14 members of the St. Louis Board of Aldermen and the President of the Board of Aldermen were elected. These were the first elections held after Proposition R (2012) came into effect, reducing the number of alderpersons from 28 to 14.
This entry records the listed event date, as dated in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-18
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The 2023 Chicago elections took place in two rounds on February 28, 2023, and April 4, 2023. Elections were held for Mayor of Chicago, City Clerk of Chicago, City Treasurer of Chicago, all 50 members of the Chicago City Council, and 66 members of the newly created police District Councils. The elections were administered by the Chicago Board of Elections.
This entry records the listed event date, as dated in the source infobox.
Location not yet verified · Politics & society · Checked 2026-10-19
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Finland deposited its instrument of accession at NATO headquarters in Brussels, completing its entry into the alliance. A flag-raising ceremony followed.
NATO headquarters, Brussels, Belgium · Politics & society · Checked 2026-11-06
The indirect election to the Council of the Republic of Belarus were held on 4 April 2024.
Belarus · Politics & society · Checked 2026-09-23
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In the southeastern border province of Sistan and Balochistan, an attack on an Islamic Revolutionary Guard Corps (IRGC) headquarters happened on the night of 4 April 2024. At least 16 Iranian security force members were killed in this attack. The clashes occurred in the towns of Chabahar, Rask and Sarbaz. Jaish ul-Adl, a Sunni armed group, was involved in the attack and lost at least 16 members during the clashes.
Sistan and Baluchestan province, Iran · War & conflict · Checked 2026-09-23
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The PFL 1 mixed martial arts event for the 2024 season of the Professional Fighters League was held on April 4, 2024, at the Boeing Center at Tech Port in San Antonio, Texas, United States. This marked the first regular-season event of the tournament and included fights in the Women's Flyweight and Heavyweight divisions.
Texas, United States · Sport · Checked 2026-09-23
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The Battle of Chasiv Yar is a military engagement in the Russo-Ukrainian war between the Russian Armed Forces and the Armed Forces of Ukraine for control of the city of Chasiv Yar and surrounding villages. The battle began on 4 April 2024 with the first direct assault on the city by Russian forces, and has thus far seen the capture of the district east of a canal passing through the city, the crossing of the canal, and the claimed capture of the city as of early August 2025.
Location not yet verified · War & conflict · Checked 2026-10-18
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