What happened on September 17?

163 sourced historical events are currently published for September 17. Browse the chronology below or filter this date by place and event type. This collection is expanding, not an exhaustive account of the day.

Explore this date

The published September 17 chronology runs from 1176 to 2025, a span of 849 years. It contains 163 sourced records across 45 countries and 8 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.

Most represented topics

  • War & conflict · 59 records
  • Politics & society · 50 records
  • Sport · 21 records
  • Arts & culture · 19 records

Most represented countries

  • United States · 32 records
  • Ireland · 6 records
  • Sweden · 6 records
  • Mexico · 5 records
  • Germany · 4 records

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Some events have more than one location, so country counts can overlap. Read about our sources and editorial approach.

September 17 historical events

1176 — Battle of Myriokephalon

The Battle of Myriokephalon (also known as the Battle of Myriocephalum, Greek: Μάχη του Μυριοκέφαλου, Turkish: Miryokefalon Savaşı or Düzbel Muharebesi) was a battle between the Byzantine Empire and the Seljuk Turks in the mountains west of Iconium (Konya) in west-central Anatolia on 17 September 1176. The battle was a strategic reverse for the Byzantine forces, who were ambushed when moving through a mountain pass.

Location not yet verified · War & conflict · Checked 2026-10-18

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1382 — Mary of Anjou is crowned in Hungary

On September 17, 1382, Mary of Anjou was crowned at Székesfehérvár following the death of her father, Louis I. Cardinal Demetrius crowned her with the Holy Crown of Hungary.

Székesfehérvár, Hungary · Politics & society · Checked 2026-11-05

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1462 — Battle of Świecino

The Battle of Świecino (named for the village of Świecino, near Żarnowiec Lake, northern Poland) also called the Battle of Żarnowiec or in German Battle of Schwetz, took place on September 17, 1462 during the Thirteen Years' War. The Poles commanded by Piotr Dunin, consisting of some 2000 mercenares and Poles, decisively defeated the 2700 man army of the Teutonic Knights commanded by Fritz Raweneck and Kaspar Nostyc. Auxiliary forces sent by duke Eric II of Pomerania, an ally of the Polish king, did not enter the battle.

Krokowa, Poland · War & conflict · Checked 2026-09-23

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1570 — Siege of Famagusta

The siege of Famagusta happened in Venetian-controlled Famagusta, the last Christian possession in Cyprus. Famagusta was captured by the Ottomans in August 1571 after a siege that lasted nearly a year.

This entry records the event's start date, as given in the source infobox.

Cyprus · War & conflict · Checked 2026-10-19

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1581 — Siege of Minamata Castle

The siege of Minamata Castle was a short siege of the castle of Minamata. Minamata was the entry point for the Ōtomo lands in Higo province, the castle was guarded by Sagara Yoshihi with 700 soldiers. When Shimazu Toshihisa and Iehisa encamped near the castle with 115,000 men, Yoshihi was forced to surrender. Later, Yoshihi was killed in a surprise attack by Kai Soun's army in the Battle of Hibikinohara.

This entry records the event's end date, as given in the source infobox.

Location not yet verified · War & conflict · Checked 2026-10-18

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1584 — Siege of Ghent (1583–1584)

The siege of Ghent during the Eighty Years' War by Spanish general Alexander Farnese, Prince of Parma, lasted from October 1583 to 17 September 1584. It was the end phase of the so-called Calvinist Republic of Ghent, which had controlled most of the County of Flanders since radical Protestants seized power on 28 October 1577, claiming a leading role for the city of Ghent in the struggle against the Spanish royal forces and Malcontent Catholics.

This entry records the event's end date, as given in the source infobox.

Netherlands · War & conflict · Checked 2026-10-18

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1594 — Siege of Morlaix (1594)

The siege of Morlaix took place from 6 September to 17 September 1594 during the French Wars of Religion and the Anglo-Spanish War (1585–1604). The siege was fought between the French Royal army under Marshal d'Aumont reinforced by an English contingent under Sir John Norreys who besieged the town of Morlaix, which was held by the combined forces of Spain and the Catholic League of France.

This entry records the event's end date, as given in the source infobox.

France · War & conflict · Checked 2026-10-18

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1620 — Battle of Cecora (1620)

The Battle of Cecora (also known as the Battle of Țuțora) took place during the Polish–Ottoman War (1620–21) between the Polish–Lithuanian Commonwealth (aided by rebel Moldavian troops) and Ottoman forces (backed by Nogais), fought from 17 September to 7 October 1620 in Moldavia, near the Prut River.

This entry records the event's start date, as given in the source infobox.

Location not yet verified · War & conflict · Checked 2026-10-18

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1630 — The Massachusetts Bay settlement takes the name Boston

On September 17, 1630, the Massachusetts Bay Colony named the settlement of Shawmut Boston. The date corresponds to September 7 in the calendar used by the colony.

September 17 is the Gregorian equivalent of September 7, the date in the colony’s Julian calendar.

Boston, Massachusetts, United States · Politics & society · Checked 2026-11-05

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1631 — Battle of Breitenfeld (1631)

The Battle of Breitenfeld, 17 September 1631, took place during the Thirty Years' War outside Breitenfeld, Leipzig, in modern Saxony. In one of the most significant battles of the war, a combined Swedish-Saxon force defeated an army made up of Imperial and Catholic League troops. Swedish intervention in the Thirty Years' War began in June 1630 when nearly 18,000 soldiers under Gustavus Adolphus landed in Pomerania.

Saxony, Germany · War & conflict · Checked 2026-09-23

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1658 — Battle of Vilanova

The Battle of Vilanova took place on 17 September 1658 during the Portuguese Restoration War near the Fort of São Luis de Gonzaga, located downstream from Tui on the southern bank of the Minho River. A Spanish army commanded by the Governor of Galicia, Rodrigo Pimentel, Marquis of Viana, entered Portuguese territory and confronted a Portuguese army led by João Rodrigues de Vasconcelos e Sousa, 2nd Count of Castelo Melhor.

Location not yet verified · War & conflict · Checked 2026-10-18

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1666 — Battle of Dungeness (1666)

The Battle of Dungeness or the Battle of Cape Dungeness (French: Bataille du cap Dungeness) (17 September 1666) was a naval battle that took place during the Second Anglo-Dutch War. A combined French and Dutch fleet under Job Forant encountered a larger English fleet commanded by Admiral Sir Thomas Allin, 1st Baronet. The English attacked and in poor visibility a series of encounters left several French and Dutch ships badly damaged.

Location not yet verified · War & conflict · Checked 2026-10-18

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1676 — Siege of Philippsburg (1676)

The siege of Philippsburg was a successful Imperial siege of the fortress of Philippsburg during the Franco-Dutch War.

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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1683 — Antonie van Leeuwenhoek writes about bacteria he observed in dental plaque

Writing from Delft to the Royal Society’s Francis Aston, Leeuwenhoek described the tiny living organisms he had seen under his microscope in material scraped from teeth. They were among the earliest documented observations of bacteria.

Delft, Netherlands · Science & discovery · Checked 2026-11-06

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1775 — Siege of Fort St. Jean

The siege of Fort St. Jean (September 17 – November 3, 1775 French: Siège du Fort Saint-Jean) was conducted by American Brigadier General Richard Montgomery on the town and fort of Saint-Jean, also called St. John, St. Johns, or St. John's, in the British province of Quebec during the American Revolutionary War. The siege lasted from September 17 to November 3, 1775.

American Revolutionary War: The invasion of Quebec by the Continental Army begins with the Siege of Fort St. Jean.

Location not yet verified · War & conflict · Checked 2026-10-18

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1776 — The Presidio of San Francisco is founded in New Spain

The Presidio of San Francisco (originally, El Presidio Real de San Francisco or The Royal Fortress of Saint Francis) is a park and former U.S. Army post on the northern tip of the San Francisco Peninsula in San Francisco, California, and is part of the Golden Gate National Recreation Area. It had been a fortified location since September 17, 1776, when New Spain established the presidio to gain a foothold in Alta California and the San Francisco Bay.

Location not yet verified · Politics & society · Checked 2026-10-18

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1778 — Treaty of Fort Pitt

The Treaty of Fort Pitt, also known as the Treaty With the Delawares, the Delaware Treaty, or the Fourth Treaty of Pittsburgh, was signed on September 17, 1778; it was the first formal treaty between the new United States of America and any Native American groups, in this case the Lenape, called the Delaware by white settlers.

Location not yet verified · Politics & society · Checked 2026-10-18

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1778 — Attack on German Flatts (1778)

The attack on German Flatts (September 17, 1778) was a raid on the frontier settlement of German Flatts, New York (which then also encompassed what is now Herkimer) during the American Revolutionary War. The attack was made by a mixed force of Loyalists and Haudenosaunee (Iroquois) under the overall command of Mohawk leader Joseph Brant, and resulted in the destruction of houses, barns, and crops, and the taking of livestock for the raiders' use.

Location not yet verified · War & conflict · Checked 2026-10-18

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1787 — Signing of the United States Constitution

The Signing of the United States Constitution occurred on September 17, 1787, at Independence Hall in Philadelphia, Pennsylvania, when 39 delegates to the Constitutional Convention, representing 12 states (all but Rhode Island, which declined to send delegates), endorsed the Constitution created during the four-month-long convention. In addition to signatures, this endorsement, the Constitution's eschatocol, included a brief declaration that the delegates’ work has been successfully completed and that those whose signatures appear on it subscribe to the final document. Included are, a statement pronouncing the document's adoption by the states present, a formulaic dating of its adoption, along with the signatures of those endorsing it.

Pennsylvania, United States · Politics & society · Checked 2026-09-23

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1789 — Discovery of Mimas

Mimas is the seventh-largest natural satellite of Saturn. With a mean diameter of 396.4 kilometres or 246.3 miles, Mimas is the smallest astronomical body known to be roughly rounded in shape due to its own gravity. Mimas's low density, 1.15 g/cm3, indicates that it is composed mostly of water ice with only a small amount of rock, and study of Mimas's motion suggests that it may have a liquid ocean beneath its surface ice.

Location not yet verified · Science & discovery · Checked 2026-10-19

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1793 — Battle of Peyrestortes

The Battle of Peyrestortes on 17 September 1793 saw soldiers of the First French Republic fighting troops of the Kingdom of Spain during the War of the Pyrenees. The French Army of the eastern Pyrenees, temporarily commanded by Eustache Charles d'Aoust defeated two divisions of the Army of Catalonia led by Juan de Courten and Jerónimo Girón-Moctezuma, Marquis de las Amarilas. This Spanish setback in an attempt to capture Perpignan marked the high point of their invasion of Roussillon. The Spanish army of Antonio Ricardos had occupied part of Rousillon and made an abortive attempt to seize the fortress of Perpignan in July.

Peyrestortes, France · Pyrénées-Orientales, France · War & conflict · Checked 2026-09-23

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1794 — Battle of Krupczyce

The Battle of Krupczyce took place between the Russian Empire's armed forces under the command of Alexander Vasilyevich Suvorov and Kościuszko's Polish-Lithuanian rebels under Karol Józef Sierakowski east of Brest (near the Krupczyce Abbey), in present-day Chyzhewshchyna, Belarus, on September 17, 1794. It was part of the Kościuszko Uprising and ended with the defeat of the rebels.

Belarus · War & conflict · Checked 2026-09-23

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1809 — Treaty of Fredrikshamn

The Treaty of Fredrikshamn, or the Treaty of Hamina, was a peace treaty concluded between Sweden and Imperial Russia on 17 September 1809. The treaty concluded the Finnish War and was signed in the Finnish town of Fredrikshamn (Hamina). Russia was represented by Nikolay Rumyantsev and David Alopaeus (Russian ambassador to Stockholm), while Sweden by Infantry General Kurt von Stedingk (former Swedish ambassador to Saint Petersburg) and Colonel Anders Fredrik Skjöldebrand.

Location not yet verified · Politics & society · Checked 2026-10-18

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1809 — Finnish War

The Finnish War was fought between the Kingdom of Sweden and the Russian Empire from 21 February 1808 to 17 September 1809 as part of the Napoleonic Wars. As a result of the war, the eastern third of Sweden was established as the autonomous Grand Duchy of Finland within the Russian Empire.

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Finland · Sweden · War & conflict · Checked 2026-10-18

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1813 — Second Battle of Kulm

The Second Battle of Kulm or the Battle of Teplitz was fought on 17 September 1813 heights immediately above Kulm, by a Coalition army commanded by the Austrian field marshal, Prince of Schwarzenberg, and a French army under the command of the Emperor Napoleon. It resulted in an Austrian victory.

Bohemia, Czechia · War & conflict · Checked 2026-09-23

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1818 — 1818 Illinois lieutenant gubernatorial election

The 1818 Illinois lieutenant gubernatorial election was held on September 17, 1818, in order to elect the first lieutenant governor of Illinois upon Illinois acquiring statehood on December 3, 1818. Democratic-Republican candidate Pierre Menard defeated fellow Democratic-Republican candidates William L. Reynolds and Edward N. Cullom.

Illinois, United States · Politics & society · Checked 2026-09-23

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1823 — Siege of Pamplona (1823)

The siege of Pamplona (French: siège de Pampelune, Spanish: asedio de Pamplona) took place in 1823 during the French invasion of Spain. The city of Pamplona in Navarre was besieged by the French Army and successfully taken. It was one of the more notable actions of the campaign along with the Battle of Trocadero.

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Spain · War & conflict · Checked 2026-10-18

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1829 — Battle of Siluk

The Battle of Siluk was an engagement at the closing stages of the Java War between rebel forces of Prince Diponegoro, commanded by Sentot Prawirodirdjo, and Dutch colonial forces on 17 September 1829. Dutch forces, pursuing Diponegoro, attempted to surround his force at the village of Siluk, and after a battle, scattered the remnants of the rebel force while failing to capture Diponegoro.

Location not yet verified · War & conflict · Checked 2026-10-18

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1842 — Dawson massacre

The Dawson massacre, also called the Dawson expedition, was an incident in which 36 Texian militiamen were killed by Mexican soldiers on September 17, 1842 near San Antonio de Bexar (now the U.S. city of San Antonio, Texas). The event occurred during the Battle of Salado Creek, which ended with a Texan victory. This was among numerous armed conflicts over the area between the Rio Grande and Nueces rivers, which the Republic of Texas tried to control after achieving independence in 1836.

Texas, United States · War & conflict · Checked 2026-09-23

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1842 — Battle of the Salado

The Battle of the Salado was a decisive engagement in 1842 which repulsed the final Mexican invasion of the Republic of Texas. Colonel Mathew Caldwell of the Texas Rangers led just over 200 militia against an army of 1,600 Mexican Army soldiers and Cherokee warriors, and defeated them outside of San Antonio de Bexar along Salado Creek.

United States · War & conflict · Checked 2026-10-18

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1845 — Battle of Estrelleta

The Battle of Estrelleta (Spanish: Batalla de la Esrelleta) was a major battle of the Dominican War of Independence and was fought on September 17, 1845, at the site of Estrelleta, near Las Matas de Farfán, San Juan Province. A force of Dominican troops, a portion of the Army of the South, led by General Antonio Duvergé, defeated an outnumbering force of the Haitian Army led by General Jean-Louis Pierrot.

Location not yet verified · War & conflict · Checked 2026-10-18

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1849 — Harriet Tubman makes her first documented attempt to escape slavery

Harriet Tubman fled with two of her brothers from Maryland’s Eastern Shore. They returned after that attempt. Tubman later escaped again and reached freedom in Philadelphia.

Poplar Neck, Maryland, United States · Politics & society · Checked 2026-11-06

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1861 — Battle of Pavón

The Battle of Pavón was a key battle of the Argentine civil wars. It was fought in Pavón in Santa Fé Province, Argentina, on September 17, 1861, between the Army of the State of Buenos Aires, commanded by Bartolomé Mitre, and the Army of Republic of the Argentine Confederation commanded by Justo José de Urquiza. The withdrawal of Urquiza left the field to Mitre. It led to the dissolution of the national government and the reincorporation of Buenos Aires Province into the Argentine Republic as a dominant member of the nation.

Santa Fe Province, Argentina · War & conflict · Checked 2026-09-23

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1861 — Action at Blue Mills Landing

The action at Blue Mills Landing, also known as the Battle of Liberty, was a battle of the American Civil War that took place on September 17, 1861, in Clay County, Missouri. Union forces unsuccessfully attempted to prevent pro-Southern Missouri State Guards from northwestern Missouri from crossing the Missouri River near the confluence with the Blue River to reinforce Sterling Price at Lexington.

Missouri, United States · War & conflict · Checked 2026-09-23

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1862 — Battle of Antietam

The Battle of Antietam /ænˈtiːtəm/, also known as the Battle of Sharpsburg, particularly in the South, was fought on September 17, 1862, near Sharpsburg, Maryland and Antietam Creek as part of the Maryland Campaign. It was the first Field army-level engagement in the Eastern Theater of the American Civil War to take place on Union soil. It is the bloodiest single-day battle in American history, with a combined tally of 22,717 dead, wounded, or missing. After pursuing the Confederate general Robert E. Lee into Maryland, Maj. Gen. George B. McClellan of the Union Army launched attacks against Lee's army, in defensive positions behind Antietam Creek.

Washington County, Maryland, United States · War & conflict · Checked 2026-09-23

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1862 — Battle of Munfordville

The Battle of Munfordville (also known as the Battle of Green River) was an engagement in Munfordville, Kentucky during the American Civil War. Victory there allowed the Confederates to temporarily strengthen their hold on the region and impair Union supply lines.

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United States · War & conflict · Checked 2026-10-18

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1862 — An explosion kills workers at the Allegheny Arsenal

On September 17, 1862, explosions and fire devastated a munitions laboratory at the Allegheny Arsenal in Lawrenceville, Pennsylvania. Seventy-eight workers were killed, most of them young women. The arsenal was producing ammunition for the Union Army during the American Civil War.

United States · Disasters · Checked 2026-11-05

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1878 — 1878 Canadian federal election

The 1878 Canadian federal election was held on September 17, 1878, to elect members of the House of Commons of the 4th Parliament of Canada. It resulted in the end of Prime Minister Alexander Mackenzie's Liberal government after only one term in office. Canada suffered an economic depression during Mackenzie's term, and his party was punished by voters for it.

Canada · Politics & society · Checked 2026-09-23

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1878 — 1878 Nova Scotia general election

The 1878 Nova Scotia general election was held on 17 September 1878 to elect members of the 27th House of Assembly of the province of Nova Scotia, Canada. It was won by the Liberal-Conservative Party.

Location not yet verified · Politics & society · Checked 2026-10-18

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1894 — Battle of the Yalu River (1894)

The Battle of the Yalu River (simplified Chinese: 黄海海战; traditional Chinese: 黃海海戰; pinyin: Huáng Hǎi Hǎizhàn; Japanese: 黄海海戦, romanized: Kōkai-kaisen; lit. 'Naval Battle of the Yellow Sea') was the largest naval engagement of the First Sino-Japanese War, and took place on 17 September 1894, the day after the Japanese victory at the land Battle of Pyongyang. The Imperial Japanese Navy defeated the Chinese Beiyang Fleet.

Location not yet verified · War & conflict · Checked 2026-10-18

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1900 — Battle of Mabitac

The Battle of Mabitac was an engagement in the Philippine-American War, when on September 17, 1900, Filipinos under General Juan Cailles defeated an American force commanded by Colonel Benjamin F. Cheatham, Jr. Mabitac was linked to the garrison town of Siniloan by a causeway which, on the day of the battle, was flooded with water (in many parts waist-deep). The water in the flanking rice fields was even deeper, making it impossible to properly deploy off the narrow road. Trenches occupied by Filipinos under Cailles cut across this causeway, blocking the path into Mabitac.

Mabitac, Philippines · War & conflict · Checked 2026-09-23

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1901 — Battle of Elands River (1901)

The Battle of Elands River took place near the Elands River Poort mountain pass on 17 September 1901 during the Second Boer War. During the battle a Boer raiding force under Jan Smuts destroyed a British cavalry squadron led by Captain Sandeman, a cousin of Winston Churchill, on the Modderfontein farm. This battle is therefore also known as the Battle of Modderfontein.

South Africa · War & conflict · Checked 2026-09-23

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1901 — Battle of Blood River Poort

In the Battle of Blood River Poort or Scheeper's Nek on 17 September 1901 a Boer commando led by Louis Botha crushed a British force commanded by Major Hubert Gough during the Second Boer War.

Location not yet verified · War & conflict · Checked 2026-10-18

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1903 — 1903 St Andrews Burghs by-election

The 1903 St Andrews Burghs by-election was a Parliamentary by-election held on 17 September 1903. The constituency returned one Member of Parliament (MP) to the House of Commons of the United Kingdom, elected by the first past the post voting system.

United Kingdom · Politics & society · Checked 2026-09-23

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1906 — 1906 Persian legislative election

The first Iranian legislative election held on 17 September 1906 after the Iranian Constitutional Revolution by a sentence from Mozaffar ad-Din Shah Qajar. First, on 27 September 1906, Mirza Nasrullah Khan was elected as the first elected Prime Minister of Iran; but before he could officially take office, he was dismissed by the Majlis again, and then the Majlis elected Ali Asghar Atabak as Prime Minister, but since Atabak was abroad, a provisional government was formed headed by Soltan-Ali Vazir-e Afkham.

Iran · Politics & society · Checked 2026-09-23

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1907 — 1907 United States House of Representatives elections in Oklahoma

The 1907 United States House of Representatives elections in Oklahoma were held on September 17, 1907, to elect the five U.S. representatives from the state of Oklahoma, which was set to be admitted to the Union on November 16, 1907. Members were elected to short terms that would last the remainder of the 60th Congress. Upon statehood, Oklahoma was delegated five congressional districts, which were held by four Democratic representatives and one Republican.

Oklahoma, United States · Politics & society · Checked 2026-09-23

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1907 — 1907 Oklahoma elections

The 1907 Oklahoma elections were held on September 17, 1907, to elect every political office in the soon-to-be-formed U.S. State of Oklahoma. The elections took place in Indian Territory and Oklahoma Territory.

Oklahoma, United States · Politics & society · Checked 2026-09-23

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1907 — 1907 Oklahoma gubernatorial election

The 1907 Oklahoma gubernatorial election was held on September 17, 1907, and was the inaugural race for Governor of Oklahoma. Democrat Charles N. Haskell defeated Republican Frank Frantz, the territorial governor. Also on the ballot was C. C. Ross of the Socialist Party. Oklahoma joined the Union as the 46th state on November 16, 1907. Haskell and all other new state officers elected at this general election took office on that date.

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1908 — Thomas Selfridge dies in a Wright aircraft crash at Fort Myer

An aircraft piloted by Orville Wright crashed during a U.S. Army trial flight at Fort Myer. Wright was injured, and his passenger, Army lieutenant Thomas Selfridge, was killed.

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1914 — Siege of Toma

The siege of Toma was a bloodless action during the First World War on the island of New Pomerania (now New Britain) between 14 and 17 September 1914 as part of the occupation of German New Guinea by the Australian Naval and Military Expeditionary Force (AN&MEF).

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1914 — Race to the Sea

The Race to the Sea (French: Course à la mer; German: Wettlauf zum Meer, Dutch: Race naar de Zee) took place from 17 September to 19 October 1914 during the First World War, after the Battle of the Frontiers (7 August – 13 September) and the German advance into France. The invasion had been stopped at the First Battle of the Marne (5–12 September) and was followed by the First Battle of the Aisne (13–28 September), a Franco-British counter-offensive.

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1914 — Andrew Fisher, who in his previous term as premier oversaw a period of reform unmatched in the Commonwealth until the 1940s, became Prime Minister of Australia for the third time

Andrew Fisher (29 August 1862 – 22 October 1928) was the fifth prime minister of Australia from 1908 to 1909, from 1910 to 1913 and from 1914 to 1915. He held office as the leader of the Australian Labor Party (ALP), and was particularly notable for leading the party to its first federal election victory and first majority government at the 1910 federal election.

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1916 — Seventh Battle of the Isonzo

The Seventh Battle of the Isonzo was fought from 14 to 17 September 1916 between the armies of the Kingdom of Italy and those of Austria-Hungary. It followed the Italian successes during the Trentino Offensive and the Sixth Battle of the Isonzo in the spring of 1916.

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1920 — National Football League

The National Football League (NFL) is a professional American football league in the United States. Composed of 32 teams, it is divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The NFL is one of the major professional sports leagues in the United States and Canada and the highest professional level of American football in the world.

The National Football League is organized as the American Professional Football Association in Canton, Ohio.

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1924 — The Border Protection Corps is established in the Second Polish Republic for the defence of the eastern border against armed Soviet raids and local bandits

The Border Protection Corps (Polish: Korpus Ochrony Pogranicza, KOP) was a military formation of the Second Polish Republic that was created in 1924 to defend the country's eastern borders against armed Soviet incursions and local bandits. Other borders were under the jurisdiction of a separate, regular Border Guard state security agency. Though the corps was part of the Polish Army, it was commanded directly by the Ministry of Internal Affairs rather than the Ministry of Military Affairs.

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1925 — Battle of al-Musayfirah

The Battle of al-Musayfirah (also spelled Battle of Messifre or Battle of Moussiefre) was one of the major military engagements between Druze rebels and the French Army on 17 September 1925, during the early stage of the Great Syrian Revolt, which continued on until 1927. After initial rebel victories against French forces at al-Kafr and then al-Mazraa, an advance guard of the French Army, then under the leadership of General Maurice Gamelin, was dispatched to the village of al-Musayfirah on 15 September. After clearing the village of its inhabitants, they set up fortifications in preparation for an assault on al-Suwayda.

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1925 — Bombardment of Chefchaouen

The Bombardment of Chefchaouen was an aerial bombardment of Chefchaouen, Morocco carried out in the middle of the Rif War by a rogue American squadron in the service of the French colonial empire, the Escadrille Cherifienne, on September 17, 1925. The bombing of Chefchaouen, in which civilians were largely the victims, was one of the first ever bombings of civilians by airplane in history.

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1925 — 1925 Seanad election

An election for 19 of the 60 seats in Seanad Éireann, the senate of the Irish Free State, was held on 17 September 1925. The election was by single transferable vote, with the entire country being used as a 19-seat constituency. These 19 joined the 41 continuing members of the 1922 Seanad to form the 1925 Seanad.

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1928 — 1928 United Party (New Zealand) leadership election

An election for the leadership of the United Party, which had replaced the New Zealand Liberal Party, was held at a conference on 17 September 1928 to choose the inaugural leader of the party. The election was won by Invercargill MP and former Liberal Prime Minister Sir Joseph Ward.

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1928 — The first Upper Peninsula State Fair opens in Escanaba

Escanaba hosted the first Upper Peninsula State Fair. The state established the fair to encourage improvements in agriculture and industry.

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1930 — Ararat rebellion

The Ararat rebellion, also known as the Ağrı rebellion (Turkish: Ağrı ayaklanmaları or Ağrı isyanı), was a 1930 uprising by the Kurds of Ağrı Province, in eastern Turkey, against the Turkish government. The leader of the guerrilla forces during the rebellion was Ihsan Nuri of the Jibran branch of the Jalali tribe.

The Kurdish Ararat rebellion is suppressed by the Turks.

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1930 — Ray Lyman Wilbur announces the name Hoover Dam

U.S. Interior Secretary Ray Lyman Wilbur announced that the new Colorado River dam would be named for President Herbert Hoover. The announcement came at a ceremony marking the start of construction on a railroad to the project site.

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1932 — 1932 Swedish general election

General elections were held in Sweden on 17 and 18 September 1932. The Swedish Social Democratic Party remained the largest party, winning 104 of the 230 seats in the Andra kammaren of the Riksdag. The party returned to government after six years in opposition, marking the beginning of 44 years of near-uninterrupted rule (the only exception was three months in 1936).

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1934 — 1934 Yukon general election

The 1934 Yukon general election was held on 17 September 1934 to elect the three members of the Yukon Territorial Council for Yukon, Canada. The council was non-partisan and had merely an advisory role to the federally appointed Commissioner.

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1935 — The Niagara Gorge Railroad ceases operations after a rockslide

The Niagara Gorge Railroad (forming part of the Great Gorge Route) was an interurban railway which ran at the bottom of the Niagara Gorge (at water level) from Niagara Falls, New York to Lewiston, New York. Stations were at International Railway Terminal, Great Gorge Route Ticket Office, New York Central Depot, Schoellkopf Station, Rapids View, Whirlpool Rapids, Whirlpool Point, Ongiara Park, Giant Rock, Devil's Hole, Lewiston-Queenston Bridge and Lewiston Dock.

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1935 — Manuel Quezon wins the Philippine Commonwealth election

Manuel Quezon won the first presidential election of the Philippine Commonwealth, and Sergio Osmeña was elected vice president. They took office in November.

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1937 — Battle of Santander

The Battle of Santander was fought in the War in the North campaign of the Spanish Civil War during the summer of 1937 and saw the victory of Italian and Nationalist forces against the Republicans. Santander's fall on 26 August assured the Nationalist conquest of the province of Santander, now Cantabria. The battle devastated the Republic's "Army of the North"; 60,000 soldiers were captured, among them the Basque forces which surrendered to the Italians on August 25.

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1939 — Battle of Brześć Litewski

The Battle of Brześć Litewski (also known as the Siege of Brześć, Battle of Brest-Litovsk or simply Battle of Brześć) was a World War II battle involving German and Polish forces that took place between 14 and 17 September 1939, near the town of Brześć Litewski (now Brest, Belarus). After three days of heavy fights for the stronghold in the town of Brześć, the Germans captured the fortress and the Poles withdrew.

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1939 — Soviet invasion of Poland

The Soviet invasion of Poland was a military conflict by the Soviet Union without a formal declaration of war. On 17 September 1939, the Soviet Union invaded Poland from the east, 16 days after Nazi Germany invaded Poland from the west. Subsequent military operations lasted for the following 20 days and ended on 6 October 1939 with the two-way division and annexation of the entire territory of the Second Polish Republic by Nazi Germany and the Soviet Union.

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1940 — Operation Sea Lion

Operation Sea Lion, also written as Operation Sealion (German: Unternehmen Seelöwe), was Nazi Germany's code name for their planned invasion of the United Kingdom. It was to have taken place during the Battle of Britain, nine months after the start of the Second World War. Following the armistice with France after the Battle of France, Adolf Hitler, the German Führer and Supreme Commander of the Armed Forces, hoped the British government would accept his offer to end the state of war between the two. He considered invasion to be a last resort, to be used only if all other options had failed. As a precondition for the invasion of Britain, Hitler demanded both air and naval superiority over the English Channel and the proposed landing sites. The German forces achieved neither at any point of the war. Further, both the German High Command and Hitler himself held serious doubts about the prospects for success. Nevertheless, both the German Army and Navy undertook major preparations for an invasion. These included training troops, developing specialised weapons and equipment, modifying transport vessels and the collection of a large number of river barges and transport ships on the Channel coast. However, in light of mounting Luftwaffe losses in the Battle of Britain and the absence of any sign that the Royal Air Force had been defeated, Hitler postponed Sea Lion indefinitely on 17 September 1940.

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1941 — Anglo-Soviet invasion of Iran

The Anglo-Soviet invasion of Iran, also known as the Anglo-Soviet invasion of Persia or the Allied invasion of Iran, was the joint invasion of the officially neutral Imperial State of Iran by the United Kingdom and the Soviet Union in August 1941. The two powers announced that they would stay until six months after the end of the war with their mutual enemy, Nazi Germany (World War II), which turned out to be 2 March 1946.

World War II: Soviet forces enter Tehran during the Anglo-Soviet invasion of Iran.

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1942 — Operation Gearbox

Operation Gearbox (30 June – 17 September 1942) was a joint Norwegian and British operation to occupy the Arctic island of Spitsbergen during the Second World War. It superseded Operation Fritham, an expedition in May, to secure the coal mines on Spitsbergen, the main island of the Svalbard Archipelago which had failed when attacked by four German Focke-Wulf Fw 200 Condor reconnaissance bombers.

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1943 — Operation Avalanche

Operation Avalanche was the codename for the Allied landings near the port of Salerno, executed on 9 September 1943, part of the Allied invasion of Italy during World War II. The Italians withdrew from the war the day before the invasion, but the Allies landed in an area defended by German troops. Planned under the name Top Hat, it was supported by the deception plan Operation Boardman.

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1944 — Battle of San Marino

The Battle of San Marino was an engagement on 17–20 September 1944 during the Italian Campaign of the Second World War, in which German Army forces occupied the neutral Republic of San Marino, and were then attacked by Allied forces. It is also sometimes known as the Battle of Monte Pulito. San Marino had declared its neutrality earlier in the war, and had remained broadly unaffected by events in Europe until 1944, when Allied forces had advanced a sizable distance up the Italian Peninsula.

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1944 — Swedish general election, 1944

General elections were held in Sweden on 17 September 1944. The Swedish Social Democratic Party remained the largest party, winning 115 of the 230 seats in the Second Chamber of the Riksdag.

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1944 — Tallinn offensive

The Tallinn offensive (Russian: Таллинская наступательная операция) was a strategic offensive by the Red Army's 2nd Shock Army and 8th Army and the Baltic Fleet against the German Army Detachment Narwa and Estonian units in mainland Estonia on the Eastern Front of World War II on 17–26 September 1944. Its German counterpart was the abandonment of the Estonian territory in a retreat codenamed Operation Aster (German: Unternehmen Aster).

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1944 — Operation Market Garden

Operation Market Garden was an Allied military operation during the Second World War, fought in the German-occupied Netherlands from 17 to 25 September 1944. Its objective was to create a salient spanning 62 miles (100 km) into German territory with a bridgehead over the Nederrijn (Lower Rhine River), creating an Allied invasion route into northern Germany.

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1950 — The People's Liberation Army Air Force Airborne Corps (Then known as the PLAAF 1st Ground Forces Brigade) is founded

The People's Liberation Army Air Force Airborne Corps (Chinese: 中国人民解放军空降兵军) is a corps grade airborne and air assault force subordinated to People's Liberation Army Air Force (PLAAF) headquarters. Before April 2017, the Airborne Corps was called the PLAAF 15th Airborne Corps.

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1957 — The Federation of Malaya joins the United Nations

The United Nations General Assembly admitted the Federation of Malaya as its 82nd member. The country had gained independence the previous month and later became Malaysia.

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1961 — Northwest Orient Airlines Flight 706

Northwest Orient Airlines Flight 706 was a Lockheed L-188 Electra aircraft, registration N137US, which crashed on take-off from Chicago's O'Hare International Airport September 17, 1961. All 37 on board were killed in the accident. Flight 706 began its day in Milwaukee, Wisconsin, and was scheduled to stop at Chicago before travelling to Tampa, Fort Lauderdale, and Miami, Florida.

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1961 — 1961 West German federal election

A federal election was held in West Germany on 17 September 1961 to elect the members of the fourth Bundestag. The CDU/CSU remained the largest faction, winning 242 of the 499 seats. However, the loss of its majority and the All-German Party losing all its seats led to the CDU having to negotiate a coalition with the long-term junior coalition partner, the Free Democratic Party, leading to a demand for long-term chancellor Konrad Adenauer to leave office in 1963, halfway through his term.

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1961 — The world's first retractable roof stadium, the Civic Arena, opens in Pittsburgh, Pennsylvania

The Civic Arena, formerly the Civic Auditorium and later Mellon Arena, was a multi-purpose arena located in Downtown Pittsburgh, Pennsylvania. It primarily served as the home to the Pittsburgh Penguins, the city's National Hockey League (NHL) franchise, from 1967 to 2010. Constructed in 1961 for use by the Pittsburgh Civic Light Opera (CLO), it was the brainchild of department store owner Edgar J. Kaufmann.

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1961 — Siege of Jadotville

The Siege of Jadotville ([ʒa.do.vil]) was a major battle during the Congo Crisis, that began on 13 September 1961 and lasted for five days. A small contingent of the Irish Army's 35th Battalion serving under the United Nations Operation in the Congo (ONUC), designated "A" Company, was besieged at the UN base near the mining town of Jadotville (modern-day Likasi) by Katangese forces loyal to the secessionist State of Katanga.

This entry records the event's end date, as given in the source infobox.

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1965 — 1965 Aden airport attack

The Aden Airport attack was a grenade attack which took place on 17 September 1965 and resulted in the injury of nine people. The United Kingdom accused the attackers of being "externally controlled", referring to Gamal Abdel Nasser's Republic of Egypt. The attack prompted the UK to suspend the constitution of the Aden Protectorate on 25 September, in an attempt to put an end to the violence.

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1965 — Battle of Chawinda

The Battle of Chawinda was a major engagement between Pakistan and India during the Indo-Pakistani war of 1965 as part of the Sialkot campaign. It is well known as being one of the largest tank battles in history since the Battle of Kursk, which was fought between the Soviet Union and Nazi Germany in World War II.

The Battle of Chawinda is fought between Pakistan and India.

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1965 — Researchers complete the chemical synthesis of crystalline bovine insulin

A team in China completed the total chemical synthesis of crystalline bovine insulin. The synthetic insulin was shown to have biological activity.

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1967 — 1967 All-Ireland Senior Camogie Championship final

The 1967 All-Ireland Senior Camogie Championship Final was the 36th All-Ireland Final and the deciding match of the 1967 All-Ireland Senior Camogie Championship, an inter-county camogie tournament for the top teams in Ireland. Dublin made a stronger start and let at half-time by a goal, but Antrim fought back for a draw. Mairéad McAtamney scored three goals for the Glenswomen.

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1969 — 1969 Israel Super Cup

The 1969 Israel Super Cup was the sixth Israel Super Cup, an annual Israeli football match played between the winners of the previous season's Top Division and Israel State Cup, and the first time the competition was played under the IFA. The match was played between Hapoel Tel Aviv, champions of the 1968–69 Liga Leumit and Hakoah Ramat Gan, winners of the 1968–69 Israel State Cup.

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1970 — 1970 Kerala Legislative Assembly election

Elections were held on 17 September 1970 to elect members of the fourth Niyamasabha. The United Front, led by CPI, IUML, RSP, and with the external support from INC, won plurality of seats and formed the government, with C. Achutha Menon as the Chief Minister.

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1972 — 1972 All-Ireland Senior Camogie Championship final

The 1972 All-Ireland Senior Camogie Championship Final, the 41st event of its type, is the culmination of the 1972 All-Ireland Senior Camogie Championship. The marking was tight on both sides and this impeded the quality of play; Cork won by four points, mostly due to their superior defence.

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1974 — The United Nations admits Bangladesh, Grenada and Guinea-Bissau

The United Nations General Assembly admitted Bangladesh, Grenada and Guinea-Bissau as member states. The three admissions took place at the opening of the Assembly’s 29th session.

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1976 — Eritrean forces begin an offensive against Nakfa

On September 17, 1976, Eritrean forces attacked the Ethiopian garrison at Nakfa, in present-day Eritrea. The offensive began a siege that lasted into 1977.

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1976 — The space shuttle Enterprise makes its public debut

Enterprise, NASA's first space shuttle orbiter, rolled out of Rockwell's assembly facility in Palmdale, California. It was built for testing.

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1977 — 1977 South Australian state election

State elections were held in South Australia on 17 September 1977. All 47 seats in the South Australian House of Assembly were up for election. The incumbent Australian Labor Party led by Premier of South Australia Don Dunstan won a fourth term in government, defeating the Liberal Party of Australia led by Leader of the Opposition David Tonkin.

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1977 — 1977 New South Wales local elections

The 1977 New South Wales local elections were held on 17 September 1977 to elect the councils of the local government areas (LGAs) of New South Wales, Australia.

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1978 — 1978 All-Ireland Senior Camogie Championship final

The 1978 All-Ireland Senior Camogie Championship final, the 47th event of its type, is the culmination of the 1978 All-Ireland Senior Camogie Championship. Cork bridged a five-year gap since their previous title with what would prove to be an easy victory.

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1978 — Camp David Accords

The Camp David Accords were a pair of political agreements signed by Egyptian president Anwar Sadat and Israeli prime minister Menachem Begin on 17 September 1978, following twelve days of secret negotiations at Camp David, the country retreat of the president of the United States in Maryland. The two framework agreements were signed at the White House and were witnessed by President Jimmy Carter.

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1980 — Formal establishment of Solidarity

Solidarity (Polish: „Solidarność”, pronounced [sɔliˈdarnɔɕt͡ɕ] ), full name Independent Self-Governing Trade Union "Solidarity" (Niezależny Samorządny Związek Zawodowy „Solidarność” [ɲɛzaˈlɛʐnɨ samɔˈʐɔndnɨ ˈzvjɔ̃zɛɡ zavɔˈdɔvɨ sɔliˈdarnɔɕt͡ɕ], abbreviated NSZZ „Solidarność”), is a Polish trade union founded in August 1980 at the Lenin Shipyard in Gdańsk, Poland. Subsequently, it was the first independent trade union in a Warsaw Pact country to be recognised by the state.

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1980 — Death of Anastasio Somoza Debayle

Anastasio "Tachito" Somoza Debayle (Spanish: [anasˈtasjo soˈmosa ðeˈβajle]; 5 December 1925 – 17 September 1980) was a Nicaraguan politician, military officer, hydraulic engineer, and dictator who served as the 53rd President of Nicaragua from 1967 to 1972 and again from 1974 until his fall in 1979. As head of the National Guard, he was de facto ruler of the country between 1967 and 1979, even during the period when he was not the de jure ruler.

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1981 — Ali Manat wins the Ulu Muar seat unopposed

Ali Manat became the state assembly member for Ulu Muar in Negeri Sembilan after he was the only candidate accepted when nominations closed. The seat was filled without a public vote.

Ulu Muar, Negeri Sembilan, Malaysia · Politics & society · Checked 2026-11-07

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1982 — EMLL 49th Anniversary Show

The EMLL 49th Anniversary Show was a professional wrestling major show event produced by Empresa Mexicana de Lucha Libre (EMLL) that took place on September 17, 1982 in Arena México, Mexico City, Mexico. The event commemorated the 49th anniversary of EMLL, which would become the oldest professional wrestling promotion in the world. The Anniversary show is EMLL's biggest show of the year, their Super Bowl event.

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1982 — Establishment of the Beijing Television Production Factory

The Beijing Television Production Factory was established. It later became known as the Beijing Television Art Center.

China · Arts & culture · Checked 2026-10-19

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1983 — WWC Aniversario

Aniversario is a professional wrestling card that is held annually by Puerto Rican promotion World Wrestling Council (WWC) to commemorate its anniversary. The first show was held in 1983 to mark the tenth anniversary of WWC's creation in 1973. Various WWC championships are defending at the event, and the 1986 event featured two defenses of the National Wrestling Alliance's NWA World Heavyweight Championship.

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1986 — 1986 NSL Cup final

The 1986 NSL Cup final was the final match of the 1986 NSL Cup, the tenth season of the National Soccer League Cup. It was played at Hindmarsh Stadium in Adelaide on 17 September 1986 between Adelaide Hellas and Sydney City. Sydney City won the match 3–2 for their first NSL Cup title. As winners Sydney City qualified for the Oceania Cup Winners' Cup.

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1988 — Opening of 1988 Summer Olympics

The 1988 Summer Olympics (Korean: 1988년 하계 올림픽), officially the Games of the XXIV Olympiad (제24회 올림픽경기대회) and officially branded as Seoul 1988 (서울 1988), were an international multi-sport event held from 17 September to 2 October 1988 in Seoul, South Korea. 159 nations were represented at the games by a total of 8,391 athletes (6,197 men and 2,194 women). 237 events were held and 27,221 volunteers helped to prepare the Olympics.

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1989 — 1989 All-Ireland Senior Football Championship final

The 1989 All-Ireland Senior Football Championship final was a Gaelic football match played at Croke Park on 17 September 1989 to determine the winners of the 1989 All-Ireland Senior Football Championship, the 103rd season of the All-Ireland Senior Football Championship, a tournament organised by the Gaelic Athletic Association for the champions of the four provinces of Ireland.

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1991 — Linus Torvalds makes the first Linux kernel release available

Linus Torvalds uploaded version 0.01 of the Linux kernel to the Finnish research network’s FTP server, making its source code available to others.

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1991 — The United Nations admits seven member states

The United Nations General Assembly admitted Estonia, Latvia, Lithuania, the Marshall Islands, the Federated States of Micronesia, North Korea and South Korea. It approved the admissions at the opening meeting of its 46th session.

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1992 — An Iranian Kurdish leader and his two joiners are assassinated by political militants in Berlin

In the Mykonos restaurant assassinations (Persian: ترور رستوران میکونوس, Sorani Kurdish: تێرۆری میکۆنۆس; also the "Mykonos Incident"), Iranian-Kurdish opposition leaders Sadegh Sharafkandi, Fattah Abdoli, Homayoun Ardalan and their translator Nouri Dehkordi, were assassinated at the Mykonos Greek restaurant in Berlin, Germany on 17 September 1992. The assassination took place during the KDPI insurgency (1989–96), as part of the general Kurdish separatism in Iran.

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1993 — Operation Medak Pocket

Operation Medak Pocket (Serbo-Croatian: Operacija Medački džep, Операција Медачки џеп), officially called by Croatians Operation Pocket-93 (Operacija Džep-93) was a military operation undertaken by the Croatian Army between 9 – 17 September 1993, in which a salient reaching the south suburbs of Gospić, in the south-central Lika region of Croatia then under the control of the self-proclaimed Republic of Serbian Krajina, was attacked by Croatian forces.

This entry records the event's end date, as given in the source infobox.

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1995 — Hong Kong legislative election, 1995

The 1995 Hong Kong Legislative Council election for members of the Legislative Council of Hong Kong (LegCo) was held on 17 September 1995. It was the last and the first fully elected legislative election in the colonial period before transferring Hong Kong's sovereignty to China two years later. The elections returned 20 members from directly elected geographical constituencies, 30 members from indirectly elected functional constituencies, and 10 members from elections committee constituency who were elected by all District Board members. Due to Governor Chris Patten's constitutional reforms, which were strongly opposed by the Beijing government, the nine newly created functional constituencies enfranchised around 2.7 million new voters.

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1995 — Fall Brawl '95: War Games

Fall Brawl '95: War Games was the third Fall Brawl professional wrestling pay-per-view (PPV) event produced by World Championship Wrestling (WCW). It took place on September 17, 1995 from the Asheville Civic Center in Asheville, North Carolina.

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1995 — 1995 European Parliament election in Sweden

The 1995 European Parliament election in Sweden was the election of Members of the European Parliament representing the Sweden constituency for the 1995–1999 term of the European Parliament. Austria, Finland and Sweden acceded to the Union on 1 January 1995. 59 delegates (21 from Austria, 16 from Finland, 22 from Sweden) were appointed to the Parliament on accession, bringing the total up to 626.

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1995 — 1995 All-Ireland Senior Football Championship final

The 1995 All-Ireland Senior Football Championship final was the 108th All-Ireland Final and the deciding match of the 1995 All-Ireland Senior Football Championship, an inter-county Gaelic football tournament for the top teams in Ireland. This year's final was played on 17 September. It was the story of Charlie Redmond, the man who was sent off twice in the same All-Ireland final.

Ireland · Sport · Checked 2026-10-18

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1996 — 1996 Jammu and Kashmir Legislative Assembly election

Elections for the Indian state of Jammu and Kashmir were held over September–October 1996. Farooq Abdullah became Chief Minister of Jammu Kashmir after the elections. The 1996 Lok Sabha elections and assembly elections in the state were possible due to efforts of counter-insurgents like Kuka Parray, (head of Ikhwan-ul-Muslemoon).

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1999 — Verano de Escándalo (1999)

The 1999 Verano de Escándalo (Spanish for "Summer of Scandal") was the third annual Verano de Escándalo professional wrestling show promoted by Asistencia Asesoría y Administración (AAA). The show took place on September 17, 1999, in Mexico City, Mexico. The Main event featured a Steel Cage Match Lucha de Apuestas where the loser would have to unmask or have his hair shaved off.

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2000 — Fall Brawl (2000)

The 2000 Fall Brawl was the eighth and final Fall Brawl professional wrestling pay-per-view (PPV) event produced by World Championship Wrestling (WCW). The event took place on September 17, 2000 from the HSBC Arena in Buffalo, New York. It would be the final Fall Brawl event before the company folded and was purchased by rival promotion World Wrestling Federation (WWF; now WWE) in March 2001.

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2000 — 2000 All-Ireland Under-21 Hurling Championship final

The 2000 All-Ireland Under-21 Hurling Championship final was a hurling match that was played at Semple Stadium, Thurles on 17 September 2000 to determine the winners of the 2000 All-Ireland Under-21 Hurling Championship, the 37th season of the All-Ireland Under-21 Hurling Championship, a tournament organised by the Gaelic Athletic Association for the champion teams of the four provinces of Ireland.

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2001 — George W. Bush visits the Islamic Center of Washington

On September 17, 2001, U.S. President George W. Bush visited the Islamic Center of Washington, D.C. In remarks there after the September 11 attacks, he distinguished Islam from the attacks and called for Muslim Americans to be treated with respect.

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2001 — 2001 Iraqi Perseverance Cup

The 2001 Iraqi Perseverance Cup (Arabic: كأس المثابرة العراقي 2001) was the 6th edition of the Iraqi Super Cup. The match was contested between Baghdad rivals Al-Zawraa and Al-Quwa Al-Jawiya at Al-Shaab Stadium in Baghdad. It was played on 17 September 2001 as a curtain-raiser to the 2001–02 season. Al-Quwa Al-Jawiya won their second Super Cup title, winning the match 1–0.

Iraq · Sport · Checked 2026-10-18

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2004 — CMLL 71st Anniversary Show

The CMLL 71sth Anniversary Show was a professional wrestling major show event produced by Consejo Mundial de Lucha Libre (CMLL) that took place on September 17, 2004 in Arena México, Mexico City, Mexico. The show consisted of six matches, with the main event being a Lucha de Apuestas, elimination match where all four competitors put their mask on the line. The competitors were Rayo de Jalisco Jr., Dr. Wagner Jr., Universo 2000 and Canek. It also featured four Six-man tag team matches, including a Mini-Estrella match. The show also featured CMLL World Light Heavyweight Champion Último Guerrero defending the title against L.A. Park.

Mexico City, Mexico · Arts & culture · Checked 2026-09-23

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2004 — The Athens Paralympics open at the Olympic Stadium

The opening ceremony of the 2004 Summer Paralympics took place at the Olympic Stadium in Athens. Greek long jumper Georgios Toptsis lit the Paralympic flame.

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2005 — New Zealand general election, 2005

The 2005 New Zealand general election on Saturday 17 September 2005 determined the membership of the 48th New Zealand Parliament. One hundred and twenty-one MPs were elected to the New Zealand House of Representatives: 69 from single-member electorates, including one overhang seat, and 52 from party lists (one extra due to the overhang). No party won a majority, but the Labour Party of Prime Minister Helen Clark secured two more seats than nearest rival, the National Party of Dr Don Brash. With the exception of the newly formed Māori Party, which took four Māori seats from Labour, most of the other parties polled lower than in the previous election, losing votes and seats.

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2005 — The television programme K-100 airs its final episode

On 17 September 2005, TVB’s programme K-100 aired its final episode.

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2006 — Swedish general election, 2006

A general election was held in Sweden on 17 September 2006, to elect members to the Riksdag, the Swedish national legislature. All 349 seats were up for election: 310 fixed seats in 29 constituencies and 39 adjustment seats, used to ensure that parties have representation in the Riksdag proportional to their share of the national vote. The electoral system used was semi-open list proportional representation using the Sainte-Laguë method of allocating seats. Elections for County and Municipal councils were also held on the same day. Fredrik Reinfeldt from the Moderate Party was able to form a majority government together with the Centre Party, Liberal People's Party and the Christian Democrats following the election.

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2006 — Unforgiven (2006)

Unforgiven (2006) was a professional wrestling pay-per-view event produced by World Wrestling Entertainment (WWE), which took place on September 17, 2006, at the Air Canada Centre in Toronto, Ontario, Canada. It was the eighth annual Unforgiven event. The show's seven matches showcased prominent WWE wrestlers, who acted out the franchise's stories in and out of the ring. The event starred talent from the Raw brand. The main event was a Tables, Ladders, and Chairs match for the WWE Championship between Edge and John Cena, which Cena won after retrieving the belt suspended above the ring.

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2006 — Verano de Escándalo (2006)

The 2006 Verano de Escándalo (Spanish for "Summer of Scandal") was the tenth annual Verano de Escándalo professional wrestling show promoted by Asistencia Asesoría y Administración (AAA). The show took place on September 17, 2006, in Naucalpan like the previous year's event. The main event featured a six-man "Lucha Libre rules" tag team match between the AAA Loyalist team of Gronda, Octagón, and La Parka and the Total Nonstop Action Wrestling (TNA) representatives Jeff Jarrett, Abyss, and Konnan.

Naucalpan, Mexico · Arts & culture · Checked 2026-09-23

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2006 — Berlin state election, 2006

The Berlin state election, 2006, was held on 17 September 2006 to elect members to the Abgeordnetenhaus (House of Deputies) of Berlin.After the elections the Social Democratic Party under Klaus Wowereit and the Left Party continued in coalition government.

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2006 — Mecklenburg-Vorpommern state election, 2006

The 2006 edition of the Mecklenburg-Vorpommern state election was conducted on September 17, 2006, to elect members to the Landtag of Mecklenburg-Vorpommern (Mecklenburg-West Pomerania).

Mecklenburg-Vorpommern, Germany · Politics & society · Checked 2026-09-23

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2006 — 2006 All-Ireland Senior Football Championship final

The 2006 All-Ireland Senior Football Championship final was the 119th All-Ireland Final and the deciding match of the 2006 All-Ireland Senior Football Championship, an inter-county Gaelic football tournament for the top teams in Ireland.

Ireland · Sport · Checked 2026-10-18

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2006 — Operation Medusa

Operation Medusa (September 2–17, 2006) was a Canadian-led NATO offensive during the Battle of Panjwaii, in the War in Afghanistan. The operation was launched to counter a major Taliban build-up near Kandahar City, as well as to establish government control in the district of Panjwayi, some 30 kilometres west of the city. It marked the most significant land battle undertaken by NATO, as well as the largest Canadian combat operation since the end of the Korean War.

This entry records the event's end date, as given in the source infobox.

Afghanistan · War & conflict · Checked 2026-10-18

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2006 — Fourpeaked Mountain erupts in Alaska

On September 17, 2006, Fourpeaked Mountain in Alaska began erupting after a long period of dormancy. Pilots and other observers reported large steam plumes. Later monitoring found volcanic gases escaping near the summit.

Fourpeaked Mountain, Alaska, United States · Disasters · Checked 2026-11-05

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2008 — UFC Fight Night: Diaz vs. Neer

UFC Fight Night: Diaz vs. Neer (also known as UFC Fight Night 15) was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on September 17, 2008 at the Omaha Civic Auditorium in Omaha, Nebraska.

Nebraska, United States · Omaha, Nebraska, United States · Sport · Checked 2026-09-23

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2008 — 2008 Kadima leadership election

An election for the leadership of Kadima was held on 17 September 2008 as a concession to Kadima's coalition partner, Labor, which had threatened to bring down the government if Prime Minister Ehud Olmert didn't stand aside following police investigations into alleged corruption during his terms as minister and as mayor of Jerusalem.

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2008 — It began at 8:00 pm China Standard Time (UTC+8) on September 17, 2008

The 2008 Summer Paralympic Games (Chinese: 2008年夏季残疾人奥林匹克运动会; pinyin: 2008 Nián Xiàjì Cánjí Rén Àolínpǐkè Yùndònghuì), the 13th Summer Paralympic Games, took place in Beijing, China, from September 6 to 17, 2008. As with the 2008 Summer Olympics, equestrian events were held in Hong Kong and sailing events in Qingdao. It was first time the new Paralympic logo featured in the Summer Paralympics since its rebranding after the 2004 Summer Paralympics.

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2011 — UFC Fight Night: Shields vs. Ellenberger

UFC Fight Night: Shields vs. Ellenberger (also known as UFC Fight Night 25) was a mixed martial arts event held by the Ultimate Fighting Championship on September 17, 2011 at the Ernest N. Morial Convention Center in New Orleans, Louisiana.

Louisiana, United States · New Orleans, United States · Sport · Checked 2026-09-23

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2011 — Death Before Dishonor IX

Death Before Dishonor IX (DBD IX) was a professional wrestling pay-per-view event produced by Ring of Honor (ROH). It took place on September 17, 2011 at the Grand Ballroom of the Manhattan Center in the New York City borough of Manhattan.

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2012 — 2012 Dominican presidential election

An indirect presidential election was held on 17 September 2012 to elect a president to finish the term of Nicholas Liverpool, who resigned. Eliud Williams was elected.

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2013 — 2013 Macon mayoral election

The 2013 Macon mayoral election took place on October 15, 2013, following a primary election on September 17, 2013. The election followed the consolidation of the city of Macon and Bibb County, and was the first election for Mayor of the consolidated city-county.

This entry records the first round, as dated in the source infobox.

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2013 — Grand Theft Auto V is released

Rockstar Games released Grand Theft Auto V for PlayStation 3 and Xbox 360. Publisher Take-Two estimated that worldwide retail sales exceeded $800 million in its first 24 hours.

United States · Arts & culture · Checked 2026-11-06

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2014 — Fijian general election, 2014

General elections were held in Fiji on 17 September 2014, to select the 50 members of the Fijian parliament. The incumbent Prime Minister, Frank Bainimarama, was re-elected. Prior to the election Bainimarama was an Independent but stood for the FijiFirst Party in 2014. The Social Democratic Liberal Party and the National Federation Party both got over 5%, the threshold for a party or independent to have seats in the parliament. The elections were originally scheduled for March 2009, but were not held then because politicians did not agree to the People's Charter for Change, Peace and Progress.

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2014 — No Surrender (2014) (broadcast)

The 2014 No Surrender (also known as Impact Wrestling: No Surrender) was a professional wrestling television special produced by Total Nonstop Action Wrestling (TNA). It took place on August 7, 2014 at the Manhattan Center Grand Ballroom in Midtown Manhattan, New York City, New York. It was the tenth event under the No Surrender chronology. It aired as a special edition of TNA's weekly broadcast of Impact Wrestling on September 17, 2014.

This entry records the broadcast date, as explicitly given in the source infobox.

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2016 — 2016 New York and New Jersey bombings

On September 17–19, 2016, three bombs exploded, and several explosive devices were found in the New York metropolitan area. The events occurred in Seaside Park, New Jersey; Manhattan, New York; and Elizabeth, New Jersey. On September 19, the suspect — Ahmad Khan Rahimi, of Elizabeth — was captured, following a shootout with police in the neighboring Linden, NJ. Rahimi's actions were allegedly influenced by the extremist Islamic ideology espoused by al-Qaeda.

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2016 — UFC Fight Night: Poirier vs. Johnson

UFC Fight Night: Poirier vs. Johnson (also known as UFC Fight Night 94) was a mixed martial arts event produced by the Ultimate Fighting Championship held on September 17, 2016, at State Farm Arena in Hidalgo, Texas.

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2016 — 2016 League of Ireland Cup final

The 2016 League of Ireland Cup final was the final match of the 2016 League of Ireland Cup, played between Limerick and defending champions St Patrick's Athletic. The match was played on 17 September 2016 at 5.30 pm. Limerick's route to the final involved them beating fellow First Division side Cobh Ramblers, before beating Premier Division sides Wexford Youths, Galway United and Derry City.

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2016 — Quneitra offensive (September 2016)

The Quneitra offensive (September 2016) was launched by Syrian rebel forces, during the Syrian Civil War, in order to capture the government-held town of Hader, Quneitra Governorate.

This entry records the event's end date, as given in the source infobox.

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2017 — 2017 NA-120 by-election

There was a by-election in the Pakistani parliamentary constituency of NA-120 on 17 September 2017, following the decision given by the Supreme Court of Pakistan to disqualify Prime Minister Nawaz Sharif from public office. PML (N) candidate Kulsoom Nawaz Sharif secured 61,745 votes and defeated Yasmin Rashid of Pakistan Tehreek-e-Insaf.

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2017 — 2017 Swedish Church Assembly elections

The Swedish Church Assembly elections were held on 17 September 2017. All 249 seats in the General Synod of the Church of Sweden were up for election, as well as local governing bodies. In church elections in Sweden all members of the Church of Sweden over the age of 16 may vote. It takes through proportional representation by lists presented by nominating groups, many of which are political parties or affiliated with political parties.

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2017 — Caravana de Campeones (2017)

Caravana de Campeones (2017) (Spanish for "Caravan of Champions") was a major annual lucha libre event produced and scripted by Mexican Lucha Libre, or professional wrestling promotion, International Wrestling Revolution Group (IWRG). The show was held on September 17, 2017in Arena Naucalpan, Naucalpan, State of Mexico, Mexico, IWRG's main arena. The 2017 version of the event was the tenth overall show IWRG has held under the Caravana de Campeones banner.

Naucalpan, Mexico · Arts & culture · Checked 2026-09-23

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2017 — 2017 All-Ireland Senior Football Championship final

The 2017 All-Ireland Senior Football Championship final was a Gaelic football match played at Croke Park in Dublin on 17 September 2017 between Dublin and Mayo, the culmination of the 2017 All-Ireland Senior Football Championship. It was the 130th final of that sport's primary competition, the All-Ireland Senior Football Championship. This was the fourth occasion that the two counties met in the final, following matches in 1921, 2013 and 2016.

Dublin, Ireland · Sport · Checked 2026-09-23

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2018 — Idlib demilitarization (2018–2019)

The Idlib demilitarization was an agreement between Turkey and Russia to create a demilitarized zone (DMZ) in Syria's rebel-held Idlib Governorate, to be patrolled by military forces from Russia and Turkey. On 17 September 2018, the Russian president Vladimir Putin and Turkish president Recep Tayyip Erdoğan, reached an agreement to create a buffer zone in Idlib.

This entry records the listed event date, as dated in the source infobox.

Syria · War & conflict · Checked 2026-10-19

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2021 — Victory Road (2021)

The 2021 Victory Road was a professional wrestling event produced by Impact Wrestling. It was taped at Skyway Studios in Nashville, Tennessee on August 17 and September 17, 2021, and aired on Impact Plus and YouTube on September 18, 2021. It was the 12th event under the Victory Road chronology, and the first Impact Plus special to stream on YouTube, following the launch of the "Impact Wrestling Insiders" membership program on the platform. 10 matches were contested at the event.

Nashville, Tennessee, United States · Arts & culture · Checked 2026-09-23

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2021 — Knockouts Knockdown (2021)

The 2021 Knockouts Knockdown was a professional wrestling event produced by Impact Wrestling. It was taped on September 17, 2021, at Skyway Studios in Nashville, Tennessee, and aired on October 9, 2021, on Impact Plus and YouTube. It was the sixth event in the Knockouts Knockdown chronology, the first event to be held since 2017, and the first to be held since the discontinuation of Impact's One Night Only series in 2019.

Nashville, Tennessee, United States · Arts & culture · Checked 2026-09-23

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2021 — Homenaje a Dos Leyendas (2021)

Homenaje a Dos Leyendas (2021) (Spanish for "Homage to Two Legends") was a professional wrestling supercard event, produced and scripted by Consejo Mundial de Lucha Libre (CMLL; Spanish for "World Wrestling Council"), that took place on September 17, 2021. It was originally scheduled to take place on March 20, 2020, but on March 14, CMLL announced that due to guidelines issued by the Mexican government, the Homenaje a Dos Leyendas show would be postponed to a future date.

Location not yet verified · Arts & culture · Checked 2026-10-18

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2021 — 2021 Iraqi Super Cup

The 2021 Iraqi Super Cup was the 10th edition of the Iraqi Super Cup. It was held on 17 September 2021 between the 2020–21 Iraqi Premier League champions and FA Cup winners Al-Quwa Al-Jawiya and the league's runners-up Al-Zawraa. This was Al-Quwa Al-Jawiya's sixth Super Cup appearance overall while Al-Zawraa extended their record to eight appearances.

Iraq · Sport · Checked 2026-10-18

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2022 — UFC Fight Night: Sandhagen vs. Song

UFC Fight Night: Sandhagen vs. Song (also known as UFC Fight Night 210, UFC on ESPN+ 68 and UFC Vegas 60) was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on September 17, 2022, at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States.

Nevada, United States · Sport · Checked 2026-09-24

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2022 — 2022 North West Central state by-election

A by-election for the electoral district of North West Central in Western Australia took place on 17 September 2022 following the resignation of the sitting member, Nationals MP Vince Catania, on 8 August 2022. The election was won by National Party candidate Merome Beard.

Location not yet verified · Politics & society · Checked 2026-10-18

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2023 — Battle of Léré (2023)

On September 17, 2023, clashes broke out between the CSP-PSD and the Malian junta in Léré, Mali.

Mali · War & conflict · Checked 2026-09-23

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2023 — 2023 Syriza leadership election

A leadership election was held in September 2023 within Syriza after the resignation of leader Alexis Tsipras following the June 2023 legislative election. It was won by Stefanos Kasselakis after two rounds of voting.

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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2024 — 2024 Bamako attacks

On 17 September 2024, gunmen from a cell of Jama'at Nasr al-Islam wal-Muslimin (JNIM) attacked several locations across Bamako, the capital of Mali, including Malian Army and Wagner Group bases and Modibo Keita International Airport. About 100 Malian soldiers and policemen were killed and more than 255 others were injured.

Bamako, Mali · War & conflict · Checked 2026-09-23

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2025 — Strategic Mutual Defence Agreement

The Strategic Mutual Defence Agreement (SMDA) is a security and defence pact between the countries of Pakistan and Saudi Arabia. Under this agreement both countries have committed to treating any act of aggression against one as an act against both known as collective security. The pact was signed on 17 September 2025 at Al-Yamamah Palace in Riyadh, by Saudi crown prince and Prime Minister, Mohammed bin Salman and Pakistani prime minister Shehbaz Sharif, during a state visit of the latter to Saudi Arabia.

Location not yet verified · Politics & society · Checked 2026-10-18

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2025 — 30th Busan International Film Festival

The 30th Busan International Film Festival (Korean: 제30회 부산국제영화제) was held from September 17 to September 26, 2025, at the Busan Cinema Center in Busan. The festival celebrating its 30th anniversary, opened with the South Korean black comedy thriller film No Other Choice by Park Chan-wook. Na Hong-jin, South Korean film director, producer and screenwriter served as President of the Competition jury.

This entry records the opening, as dated in the source infobox.

Location not yet verified · Arts & culture · Checked 2026-10-18

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