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Siege of Syracuse (877–878)

The siege of Syracuse from 877 to 878 led to the fall of the city of Syracuse, the Byzantine capital of Sicily, to the Aghlabids. The siege lasted from August 877 to 21 May 878 when the city, effectively left without assistance by the central Byzantine government, was taken by the Aghlabid forces.

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

Italy

Sixteen-year-old Otto III is crowned Holy Roman Emperor

The Holy Roman Emperor, originally and officially the Emperor of the Romans (Latin: Imperator Romanorum; German: Kaiser der Römer) during the Middle Ages, and also known as the Roman-German Emperor since the early modern period (Latin: Imperator Germanorum; German: Römisch-deutscher Kaiser), was the ruler and head of state of the Holy Roman Empire.

Coronation of Michael IX Palaiologos as Byzantine Emperor

Michael IX Palaiologos or Palaeologus (Byzantine Greek: Μιχαὴλ Δούκας Ἄγγελος Κομνηνὸς Παλαιολόγος, romanized: Mikhaḗl Doúkās Ángelos Komnēnós Palaiológos; 17 April 1277 – 12 October 1320) was Byzantine emperor together with his father, Andronikos II Palaiologos, from 1294 until his death. Andronikos II and Michael IX ruled as equal co-rulers, both using the title autokrator.

Coronation of John VI Kantakouzenos as Byzantine Emperor by patriarch Isidore I of Constantinople at the Church of St. Mary of Blachernae

John VI Kantakouzenos or Cantacuzene (Greek: Ἰωάννης Ἄγγελος [Κομνηνός] Παλαιολόγος Καντακουζηνός, romanized: Iōánnēs Ángelos [Komnēnós] Palaiológos Kantakouzēnós; Latin: Iohannes Cantacuzenus; 6 May 1292– 15 June 1383) was a Byzantine emperor and nobleman, statesman, and general. He served as grand domestic under Andronikos III Palaiologos and regent for John V Palaiologos before reigning as Byzantine emperor in his own right from 1347 to 1354.

Dušan's Code, the constitution of the Serbian Empire, is enacted by Dušan the Mighty

The Serbian Empire (Serbian: Српско царство / Srpsko carstvo, pronounced [sr̩̂pskoː tsâːrstʋo]) was a medieval Serbian state that emerged from the Kingdom of Serbia. It was established in 1346 by Dušan the Mighty, who significantly expanded the state. During Dušan's rule, Serbia was one of the most powerful European states and the most powerful in Southeast Europe.

Coronation of James I of Scotland at Scone

James I (late July 1394 – 21 February 1437) was King of Scots from 1406 to 1437. The youngest of three sons, he was born in Dunfermline Abbey to King Robert III and his wife Annabella Drummond. His older brother David, Duke of Rothesay died under suspicious circumstances while being detained by their uncle, Robert, Duke of Albany. His other brother, Robert, died young.

Battle of Rügen (1565)

The Battle of Rügen was a naval battle near the island of Rügen (in modern Germany), that took place on 21 May 1565 between an allied fleet of 6 Danish and 3 Lübeck ships, and a Swedish fleet of 48 ships with a total of 1,638 guns and 8,000 men under Klas Horn. The Swedish fleet was victorious, and 4 of the allied ships were burned, while the remaining 5 were captured.

Battle of Mimaomote

The Battle of Mimaomote (三間表の戦い, Mimaomote no tatakai) was a battle during the Azuchi–Momoyama period (16th century) of Japan. The Battle of Mimaomote was initiated by Chōsokabe commander Kumu Yorinobu with 7,000 men as he advanced into Iyo Province on Shikoku Island. There Kumu Yorinobu attacked Kōno forces under Doi Kiyonaga, who had crossed the Mimaomote River to engage him. Yorinobu was defeated and killed.

Capture of Wakefield

The capture of Wakefield occurred during the First English Civil War when a Parliamentarian force attacked the Royalist garrison of Wakefield, Yorkshire. The Parliamentarians were outnumbered, having around 1,500 men under the command of Sir Thomas Fairfax, compared to the 3,000 led by George Goring in Wakefield. Despite being outnumbered, Parliamentarians successfully stormed the town, taking roughly 1,400 prisoners.

United Kingdom

Siege of Worcester

The second and longest siege of Worcester (21 May – 23 July 1646) took place towards the end of the First English Civil War, when Parliamentary forces under the command of Thomas Rainsborough besieged the city of Worcester, accepting the capitulation of the Royalist defenders on 22 July. The next day the Royalists formally surrendered possession of the city, and the Parliamentarians entered Worcester 63 days after the siege began.

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

United Kingdom

Concert of The Hague (1659)

The Concert of The Hague, signed on 21 May 1659, was an outline of the common stance of England, France and the Dutch Republic regarding the Second Northern War. The powers agreed that the Swedish Empire and Denmark–Norway should settle for a peace treaty based on the Treaty of Roskilde, including free navigation through The Sound and the Baltic Sea based on the Treaty of Elbing.

Battle of Long Sault

The Battle of Long Sault occurred over a five-day period in early May 1660 during the Beaver Wars. It was fought between French colonial militia, with their Wendat (Huron) and Algonquin allies, against the Haudenosaunee Confederacy (Iroquois). Some historians theorize that the Haudenosaunee called off an intended attack on French settlements because one of their chiefs was killed in this battle, while others claim that the battle provided enough trophies to temper Haudenosaunee aims.

The Battle of Long Sault concludes after five days in which French colonial militia, with their Huron and Algonquin allies, are defeated by the Haudenosaunee Confederacy.

Henry Morgan's raid on Lake Maracaibo

Henry Morgan's raid on Lake Maracaibo, also known as the Sack of Maracaibo and the Battle of Lake Maracaibo, was a military event that took place between 16 March and 21 May 1669 during the latter stage of the Anglo-Spanish War. English privateers commanded by notable Buccaneer Henry Morgan launched an attack with the purpose of raiding Spanish towns along the coastline inside of Lake Maracaibo in the Spanish Province of Venezuela.

Battle of Blomindon

The Battle of Blomidon took place on 21 May 1781 during the American Revolutionary War. The naval battle involved three armed U.S. privateer vessels against three Nova Scotian vessels off Cape Split, Nova Scotia. American Privateers caught two Nova Scotia Vessels. The first Nova Scotia vessel was re-captured by Lieut Benjamin Belcher. The second Nova Scotia vessel was overtaken by the captured crew under the command of Captain Bishop.

1792 Unzen landslide and tsunami

The 1792 Unzen landslide and tsunami was a volcanic megadisaster, occurring on 21 May 1792, during the Edo period. Triggered by the volcanic activity of Mount Unzen (on the Shimabara Peninsula, Nagasaki Prefecture, Kyushu, Japan), it caused a massive collapse of the Mayuyama lava dome and a subsequent tsunami. Approximately 15,000 people lost their lives, making it the largest scale volcanic disaster in Japanese history.

Siege of Derbent (1796)

The siege of Derbent (or the storming of Derbent; Russian: Штурм Дербента) took place on 21 May [O.S. 10 May] 1796 during the Persian Expedition of 1796. Derbent, an ancient city with thick walls has a favorable geopolitical position, which locks the coastal passage between the Caucasus Mountains and the Caspian Sea.

Siege of Acre (1799)

The siege of Acre of 1799 was an unsuccessful French siege of the Ottoman city of Acre and was the turning point of Napoleon's invasion of Egypt and Syria, along with the Battle of the Nile. It was Napoleon's third tactical defeat in his career, being defeated at the Second Battle of Bassano and the Battle of Caldiero three years previously during the Italian campaign, and his first major strategic defeat, along with the last time he was defeated in battle for 10 years.

The end of the Siege of Acre (1799): Napoleon Bonaparte abandons his siege of the Ottoman city of Acre after two months. This was the turning point of Bonaparte's Egyptian campaign and one of the first major defeats he suffered in his military career.

Battle of Aspern-Essling

In the Battle of Aspern-Essling (21–22 May 1809), Napoleon attempted a forced crossing of the Danube near Vienna, but the French and their allies were driven back by the Austrians under Archduke Charles. The battle was the first time Napoleon had been personally defeated in over a decade. However, Archduke Charles failed to secure a decisive victory as Napoleon was able to successfully withdraw most of his forces.

Vienna, Austria

Siege of Montevideo (1811)

The first siege of Montevideo (Spanish: primer sitio de Montevideo) took place between May and October 1811, when the troops of the United Provinces of the Río de la Plata unsuccessfully besieged the city of Montevideo, still held by Spanish loyalists. In 1810, the May Revolution had forced the Spanish to abandon Buenos Aires, but they held on to the Banda Oriental (present-day Uruguay), as Francisco Javier de Elío moved the headquarters of his Viceroyalty of the Río de la Plata to Montevideo.

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

Uruguay

Battle of Bautzen (1813)

In the Battle of Bautzen (20–21 May 1813), a combined Prusso-Russian army, retreating after their defeat at Lützen and massively outnumbered, was pushed back by Napoleon but escaped destruction. Some sources claim that Marshal Michel Ney failed to block their retreat. The Prussians were led by General Gebhard Leberecht von Blücher, and the Russians by General Peter Wittgenstein.

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

Kedopok War

The Kedopok War, also known as Kepruk Cina ("Attack the Chinese"), was a peasant uprising in Probolinggo, East Java, in May 1813 during British rule in Java. The uprising was launched against the rule of local Chinese landlord Han Kik Ko. Several British military officers present in Probolinggo were also killed in the uprising. Han Kik Ko purchased Probolinggo from the Dutch colonial government in 1811, and levied heavy taxation to finance his purchase.

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

Indian Creek massacre

The Indian Creek Massacre occurred on May 21, 1832 with the attack by a party of Native Americans on a group of United States settlers in LaSalle County, Illinois following a dispute about a settler-constructed dam that prevented fish from reaching a nearby Potawatomi village. The incident coincided with the Black Hawk War, but it was not a direct action of the Sauk leader Black Hawk and conflict with the United States. The removal of the dam was asked, was rejected by the settlers and between 40 and 80 Potawatomis and three Sauks attacked and killed fifteen settlers, including women and children.

Earlville, Illinois, United States · Illinois, United States

Plum River raid

The Plum River raid was a bloodless skirmish that occurred at present-day Savanna, Illinois, on May 21, 1832, as part of the Black Hawk War. Most of the settlement's inhabitants, except for a few defenders, had fled for Galena, Illinois, before the raid happened. A small band of Native Americans, either Sauk or Fox, attacked the settlement while only three of the six defenders were present. The men who were present fell back to the blockhouse and a firefight ensued for about one hour, after which the attackers withdrew. No one was killed or injured during the attack, but in its aftermath Colonel James M.

Illinois, United States

Sacking of Lawrence

The sacking of Lawrence occurred on May 21, 1856, when pro-slavery settlers, led by Douglas County Sheriff Samuel J. Jones, attacked and ransacked Lawrence, Kansas, a town that had been founded by anti-slavery settlers from Massachusetts who were hoping to make Kansas a free state. The incident fueled the irregular conflict in Kansas Territory that later became known as Bleeding Kansas.

1859 Chilean revolution

The Chilean Revolution of 1859 was the second attempt by the Chilean Liberals to overthrow their country's Conservative government. Like the first attempt in 1851, it ended in failure. 5,000 people were killed during the fighting.

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

Battle of Plains Store

The Battle of Plains Store was fought on May 21, 1863, in East Baton Rouge Parish, Louisiana, during the campaign to capture Port Hudson in the American Civil War. Union troops advancing from Baton Rouge, Louisiana clashed with 600 Confederates at a road junction. The initial Confederate force withdrew, but 400 more Confederates arrived from Port Hudson. Some of the Confederate reinforcement overran Union artillery and routed a Union regiment, but were unable to capture the guns. Union reinforcements advanced to the front, attacked part of the Confederate force and drove them from the field.

East Baton Rouge Parish, Louisiana, United States

Battle of Spotsylvania Court House

The Battle of Spotsylvania Court House, sometimes more simply referred to as the Battle of Spotsylvania (or the 19th-century spelling Spottsylvania), was the second major battle in Lt. Gen. Ulysses S. Grant's 1864 Overland Campaign of the American Civil War. Following the bloody but inconclusive Battle of the Wilderness, Grant's army disengaged from Confederate General Robert E. Lee's army and moved to the southeast, attempting to lure Lee into battle under more favorable conditions. Elements of Lee's army beat the Union army to the critical crossroads of Spotsylvania Court House, Virginia and began entrenching.

Virginia, United States

Caucasian War

The Caucasian War or the Caucasus War was a 19th-century military conflict between the Russian Empire and various peoples of the North Caucasus who resisted subjugation during the Russian conquest of the Caucasus. It consisted of a series of military actions waged by the Russian Imperial Army and Cossack settlers against the native inhabitants such as the Adyghe, Abazins, Ubykhs, Chechens, Dagestanis as the Tsars sought to expand.

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

Semaine sanglante

The semaine sanglante ("Bloody Week") was a weeklong battle in Paris from 21 to 28 May 1871, during which the French Army recaptured the city from the Communards. This was the final battle of the Paris Commune. Following the Treaty of Frankfurt and France's loss in the Franco-Prussian War, on 18 March the new French government under Prime Minister Adolphe Thiers attempted to remove a large number of cannons from a park in Montmartre, to keep them out of the hands of the more radical soldiers of the Paris National Guard.

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

France

Battle of Iquique

The Battle of Iquique (Spanish: Batalla de Iquique or Combate Naval de Iquique) was a confrontation that occurred on 21 May 1879, during the naval stage of the War of the Pacific, a conflict between Chile and Peru and Bolivia. The battle took place off the then-Peruvian port of Iquique. The Peruvian ironclad Huáscar, commanded by Miguel Grau Seminario, sank Esmeralda, a Chilean wooden corvette captained by Arturo Prat Chacón, after four hours of combat.

Iquique, Chile

Battle of Punta Gruesa

The Battle of Punta Gruesa took place on May 21, 1879, during the War of the Pacific between Chile and Peru. This may be labelled as the second part of the Naval Battle of Iquique, although it is described in many sources as a separate battle.

Iquique, Chile · Peru

The American Red Cross is established by Clara Barton in Dansville, New York

The American Red Cross (ARC) is an American nonprofit humanitarian organization that provides emergency assistance, disaster relief, and disaster preparedness education in the United States. Clara Barton founded the organization in 1881 after initially learning of the Red Cross, founded 1863 in Geneva, Switzerland. It is the designated American affiliate of the International Federation of Red Cross and Red Crescent Societies and the International Red Cross and Red Crescent Movement.

The Manchester Ship Canal in the United Kingdom is officially opened by Queen Victoria, who later knights its designer Sir Edward Leader Williams

The Manchester Ship Canal is a 36-mile-long (58 km) inland waterway in North West England that links Manchester to the Irish Sea. Beginning in the Mersey estuary at Eastham, near Ellesmere Port in Cheshire, it generally follows the original routes of the rivers Mersey and Irwell through the historic counties of Cheshire and Lancashire before terminating to the east of Salford Quays near Pomona Docks and a junction with the Bridgewater Canal where it meets the Irwell.

1902 North-West Territories general election

The 1902 North-West Territories general election, occurred on 21 May 1902 and was the fifth general election in the history of the North-West Territories, Canada. It was held to elect 35 Members of the Legislative Assembly of the North-West Territories. The Liberal-Conservatives led by incumbent North-West Territories Premier Frederick W. A. G. Haultain, received 8,319 votes, taking 21 of 35 seats.

Canada

The Fédération Internationale de Football Association (FIFA) is founded in Paris

The Fédération Internationale de Football Association (FIFA) (French for 'International Association Football Federation') is an international self-regulatory governing body of association football, beach soccer, and futsal. It was founded on 21 May 1904 to oversee international competition among the national associations of Belgium, Denmark, France, Germany, the Netherlands, Spain, Sweden, and Switzerland. Headquartered in Zurich, Switzerland, its membership now comprises 211 national associations.

Treaty of Ciudad Juárez

The Treaty of Ciudad Juárez was a peace treaty signed between the President of Mexico, Porfirio Díaz, and the revolutionary Francisco Madero on May 21, 1911. The treaty put an end to the fighting between forces supporting Madero and those of Díaz and thus concluded the initial phase of the Mexican Revolution.

Hakkari expedition of 1916

The Hakkari expedition of 1916 (21 May–29 June 1916) was a number of raids during World War I conducted by the Assyrian volunteers against local Hakkari Kurdish tribesmen who the year prior, with the help of the Ottoman Empire, expelled the Assyrians from Hakkari, resulting in their settling in Russian-controlled Urmia and its surroundings.

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

Great Atlanta fire of 1917

The Great Atlanta Fire of 1917 began just after noon on 21 May 1917 in the Old Fourth Ward of Atlanta, Georgia. It is unclear just how the fire started, but it was fueled by hot temperatures and strong winds which propelled the fire. The fire, which burned for nearly 10 hours, destroyed 300 acres (120 ha) and 1,900 structures displacing over 10,000 people.

United States

Battle of Alexandrovsky Fort

The Battle of Alexander Fort (or Battle of Tyub-Karaganskom), was a naval battle fought in the Caspian Sea during the Russian Civil War at the naval military base of Fort Alexandrovsky.

The opera Doktor Faust, unfinished when composer Ferruccio Busoni died, is premiered in Dresden

Doktor Faust is an opera by Ferruccio Busoni with a German libretto by the composer, based on the myth of Faust. Busoni worked on the opera, which he intended as his masterpiece, between 1916 and 1924, but it was still incomplete at the time of his death. His pupil Philipp Jarnach finished it. More recently, in 1982, Antony Beaumont completed the opera using sketches by Busoni that were previously thought to have been lost.

1927 Warringah by-election

A by-election was held for the Australian House of Representatives seat of Warringah on 21 May 1927. This was triggered by the resignation of Nationalist MP Sir Granville Ryrie to become Australian High Commissioner to the United Kingdom. The by-election was won by Nationalist candidate Archdale Parkhill.

Changsha coup

The Changsha coup was a mutiny in Changsha on the evening of May 21, 1927. It was led by Xu Keqiang (許克祥), a regiment commander under General Tang Shengzhi. Up to "several thousands" of peasants were killed in the coup.On January 26, 1923, Sun Yat-sen and Soviet Deputy Foreign Minister Adolph Joffe issued a joint statement and adopted a policy of alliance with Russia and tolerance of the Chinese Communist Party (CCP).

The Changsha coup was a mutiny in Changsha on the evening of May 21, 1927.

1930 United Party (New Zealand) leadership election

An election for the leadership of the United Party was held on 21 May 1930 to choose the next leader of the party. The election was won by Hurunui MP and co-deputy leader of the party George Forbes.

New Zealand

Battle of Arras (1940)

The Battle of Arras took place on 21 May 1940, during the Battle of France in the Second World War. Following the German invasion of the Low Countries on 10 May, French and British forces advanced into Belgium. The German campaign plan Fall Gelb (Case Yellow) had evolved into a decoy operation in the Netherlands and Belgium, with the main effort through the Ardennes.

Arras, France

Convoy ON 92

Convoy ON 92 was a trade convoy of merchant ships during the Second World War. It was the 92nd of the numbered series of ON convoys Outbound from the British Isles to North America. The ships departed from Liverpool on 6 May 1942 and were joined on 7 May by Mid-Ocean Escort Force Group A-3.

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

West Loch disaster

The West Loch Disaster was a maritime accident during World War II at Pearl Harbor U.S. Naval Base in Hawaii. The incident, which occurred just after 3 p.m. on Sunday, 21 May 1944, began following an explosion in a staging area for Landing Ships, Tank (LSTs) and other amphibious assault ships in West Loch. A fire quickly spread among the ships being prepared for Operation Forager, the invasion of the Japanese-held Mariana Islands.

Battle of Wakde

The Battle of Wakde (Operation Straight Line) was part of the New Guinea campaign of World War II. It was fought between the United States and Japan from 17 May 1944 to 21 May 1944 in Dutch New Guinea (now Papua, in Indonesia). The operation involved an assault on the Japanese-held Wakde island group by a reinforced US infantry battalion, which was transported from a beachhead the Allied troops had established around Arara, on the mainland, the previous day.

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

Attack on the NKVD Camp in Rembertów

On May 21, 1945, a unit of the Home Army (Armia Krajowa, AK), led by Colonel Edward Wasilewski, attacked a Soviet NKVD camp located in Rembertów on the eastern outskirts of Warsaw. The Russians incarcerated there many hundreds of Polish citizens; members of the Home Army and underground fighters, whom they were systematically deporting to Siberia. However, this action of the pro-independence Polish resistance freed all Polish political prisoners from the camp.

Poland

9th Street Art Exhibition

The 9th Street Art Exhibition of Paintings and Sculpture is the official title artist Franz Kline hand-lettered onto the poster he designed for the Ninth Street Show (May 21-June 10, 1951). Now considered historic, the artist-led exhibition marked the formal debut of Abstract Expressionism, and the first American art movement with international influence.

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

United States

1955 DFB-Pokal final

The 1955 DFB-Pokal final decided the winner of the 1954–55 DFB-Pokal, the 12th season of Germany's knockout football cup competition. It was played on 21 May 1955 at the Eintracht-Stadion in Braunschweig. Karlsruher SC won the match 3–2 against Schalke 04, to claim their 1st cup title.

1958 Barbadian by-elections

By-elections were held in the Barbadian constituencies of St Joseph and St John on 21 May 1958.

Barbados

1962 Iraq Central FA Altruism Cup

The 1962 Iraq Central FA Altruism Cup was the 1st edition of the Iraq Central FA Perseverance Cup. The match was contested between the winners and runners-up of the 1961–62 edition of the Iraq Central FA Premier League, Al-Quwa Al-Jawiya and Al-Kuliya Al-Askariya respectively. Al-Quwa Al-Jawiya won the game 4–2.

Iraq

Israeli presidential election, 1963

An election to choose the third President of Israel was held in the Knesset on 21 May 1963 following the death of the county's second president, Yitzhak Ben-Zvi on 23 April. Between Ben-Zvi's death and the winner of the election, Zalman Shazar, taking office on the day of the vote, Knesset speaker Kadish Luz served as acting president.

Israel

Operation Limpieza

Operation Limpieza took place during the Dominican Civil War in May 1965. The objective of the operation was to eliminate rebel resistance in the northern part of Santo Domingo. Operation Limpieza (Cleanup) involved 16 tanks and over 1,000 troops of the military junta. The offensive began on 13 May. The attacking infantry was well equipped with mortars, bazookas, and 37 mm cannons, while the defending civilians were armed with nothing heavier than machine guns.

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

Dominican Republic

1967 Coupe de France final

The 1967 Coupe de France final was a football match held at Stade Olympique Yves-du-Manoir, Colombes on May 21, 1967, that saw Olympique Lyonnais defeat FC Sochaux-Montbéliard 3–1 thanks to goals by Angel Rambert, André Perrin and Fleury Di Nallo.

1969 European Cup Winners' Cup final

The 1969 European Cup Winners' Cup Final was the final football match of the 1968–69 European Cup Winners' Cup and the ninth European Cup Winners' Cup final. It was contested between Barcelona of Spain and Slovan Bratislava of Czechoslovakia, and was held at St. Jakob Stadium in Basel, Switzerland. Slovan won the match 3–2 thanks to goals from Ľudovít Cvetler, Vladimír Hrivnák and Ján Čapkovič.

Yuba City bus disaster

The Yuba City bus disaster occurred on May 21, 1976 in Martinez, California. A 1950 Crown bus operated by Student Transportation Lines, Inc. had been chartered to carry the Yuba City High School a cappella choir from Yuba City to Miramonte High School in Orinda for a friendship day involving the choirs of the two schools. The accident occurred at 10:55 a.m., as the driver took the Marina Vista (exit 56) off-ramp from I-680 southbound from the Benicia–Martinez Bridge. The driver was unfamiliar with this bus, and mistakenly thought the low air pressure warning (for the air brakes) was a warning of low engine oil pressure.

California, United States

1977 FA Cup final

The 1977 FA Cup final was the final match of the 1976–77 FA Cup, the 96th season of England's premier cup football competition. The match was played on 21 May 1977 at Wembley Stadium, London, and it was contested by Liverpool and Manchester United. United won the game 2–1. All three goals came in a five-minute period early in the second half.

London, United Kingdom

Battle of San Carlos (1982)

The Battle of San Carlos was an aerial and naval battle that lasted from 21 to 25 May 1982 during the British landings on the shores of San Carlos Water (which became known as "Bomb Alley") in the Falklands War. Low-flying land-based Argentine fighter jets made repeated attacks on ships of the British Task Force.

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

Falkland Islands

1983 Scottish Cup final

The 1983 Scottish Cup Final was played on 21 May 1983 at Hampden Park in Glasgow and was the final of the 108th Scottish Cup. Aberdeen and Rangers contested the match, Aberdeen won the match 1–0, thanks to Eric Black's extra time goal. Aberdeen had already won the Cup Winners' Cup ten days earlier, making the Scottish Cup their second trophy of the season.

Glasgow, United Kingdom

Assassination of Rajiv Gandhi

The assassination of Rajiv Gandhi, the ex-Prime Minister of India, occurred as a result of a suicide bombing in Sriperumbudur, near Chennai, in Tamil Nadu, India on 21 May 1991. At least 14 others were also killed. It was carried out by Thenmozhi Rajaratnam, also known as Dhanu. The attack was blamed on the Liberation Tigers of Tamil Eelam (LTTE), a militant organization from Sri Lanka; at the time India had just ended its involvement, through the Indian Peace Keeping Force, in the Sri Lankan Civil War. Subsequent accusations of conspiracy have been addressed by two commissions of inquiry and have brought down at least one national government.

India

1994 Scottish Cup final

The 1994 Scottish Cup final was the final match of the 1993–94 Scottish Cup competition, the 109th edition of the most important cup competition in Scottish football. It was played between Dundee United and Rangers at Hampden Park, Glasgow, on 21 May 1994. Dundee United won the game 1–0, with a goal by Craig Brewster. Following a mix-up between Rangers' goalkeeper Ally Maxwell and Dave McPherson, United's Christian Dailly rolled a cross-shot across goal.

Glasgow, United Kingdom

1994 FA Trophy final

The 1993–94 FA Trophy Final, known as the 1994 Vauxhall FA Trophy Final for sponsorship reasons, was the final match of the 1993–94 FA Trophy. It was the 25th season of the competition for teams from the Conference and other semi-professional teams below this level. The match was held on Saturday 21 May 1994 at Wembley Stadium, London, and was contested by Woking and Runcorn.

London, United Kingdom

Belgian regional elections, 1995

On May 21, 1995, regional elections were held in Belgium, to choose representatives in the regional councils of Flanders, Wallonia, Brussels and the German-speaking Community of Belgium. It also was the first time elections were held for the Flemish and the Walloon Council. The regional elections were held on the same day as the federal election.

Flanders, Belgium

Slamboree '95: A Legends' Reunion

Slamboree '95: A Legends' Reunion was the third Slamboree professional wrestling pay-per-view (PPV) event produced by World Championship Wrestling (WCW). It took place on May 21, 1995, from the Bayfront Arena in St. Petersburg, Florida in the United States. Eric Bischoff filled in on commentary for Tony Schiavone at this event; Schiavone took time off to undergo neck surgery.

1995 Green Party of Aotearoa New Zealand co-leadership elections

The 1995 Green Party of Aotearoa New Zealand co-leadership elections were elections that took place on 21 May 1995 to determine the future leadership of the Green Party of Aotearoa New Zealand. The elections were held at the party's annual conference at Tauhara, near Taupō. The conference determined the party would use a gender-based co-leadership model and elected Rod Donald and Jeanette Fitzsimons to fill those roles.

1995 Welsh Cup final

The 1995 Welsh Cup final, was the 108th in the competition. It was contested by Wrexham and Cardiff City at the Cardiff Arms Park, Cardiff.

1996 Portland, Oregon, mayoral election

On May 21, 1996, an election was held in Portland, Oregon, to elect the mayor. Incumbent mayor Vera Katz was re-elected. Portland uses a nonpartisan system for local elections, in which all voters are eligible to participate. All candidates are listed on the ballot without any political party affiliation. All candidates meeting the qualifications competed in a blanket primary election on May 21, 1996.

Portland, Oregon, United States · Oregon, United States

1996 Portland, Oregon, City Commission election

The 1996 Portland City Commission elections were held on May 21, 1996, and November 5, 1996, to elect three positions on the Portland, Oregon City Council. Jim Francesconi and Charlie Hales won positions 1 and 4, respectively, after a primary and runoff election. Erik Sten won election to position 2 during a special general election due to Earl Blumenauer's election to the US House of Representatives.

Northern Ireland local elections, 1997

Elections for local government were held in Northern Ireland on 21 May 1997, shortly after the 1997 general election across the entire United Kingdom.

Northern Ireland, United Kingdom

1997 Belfast City Council election

Elections to Belfast City Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used nine district electoral areas to elect a total of 51 councillors, most representing the more heavily populated north and west. Unionists lost overall control of Belfast City Council for the first time in its history, with Alliance holding the balance of power between unionists and nationalists.

Northern Ireland, United Kingdom

1997 Coleraine Borough Council election

Elections to Coleraine Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 22 councillors.

1997 North Down Borough Council election

Elections to North Down Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 25 councillors.

1997 Carrickfergus Borough Council election

Elections to Carrickfergus Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 17 councillors.

1997 Magherafelt District Council election

Elections to Magherafelt District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 16 councillors.

1997 Dungannon District Council election

Elections to Dungannon District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 22 councillors. There was no change from the prior election.

1997 Ballymena Borough Council election

Elections to Ballymena Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 24 councillors.

1997 Omagh District Council election

Elections to Omagh District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 21 councillors.

1997 Moyle District Council election

Elections to Moyle District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 15 councillors.

1997 Antrim Borough Council election

Elections to Antrim Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 19 councillors.

1997 Cookstown District Council election

Elections to Cookstown District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 16 councillors.

1997 Ards Borough Council election

Elections to Ards Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 23 councillors.

1997 Newtownabbey Borough Council election

Elections to Newtownabbey Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 25 councillors.

1997 Limavady Borough Council election

Elections to Limavady Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 15 councillors. There was no change from the prior election.

1997 Down District Council election

Elections to Down District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 23 councillors.

1997 Craigavon Borough Council election

Elections to Craigavon Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 26 councillors.

1997 Larne Borough Council election

Elections to Larne Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 15 councillors.

1997 Fermanagh District Council election

Elections to Fermanagh District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 23 councillors.

1997 Strabane District Council election

Elections to Strabane District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 16 councillors.

1997 Ballymoney Borough Council election

Elections to Ballymoney Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 16 councillors.

1997 Castlereagh Borough Council election

Elections to Castlereagh Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 23 councillors.

1997 Derry City Council election

Elections to Derry City Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used five district electoral areas to elect a total of 30 councillors.

1997 Lisburn Borough Council election

Elections to Lisburn Borough Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used five district electoral areas to elect a total of 30 councillors.

1997 Armagh City and District Council election

Elections to Armagh City and District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 22 councillors.

1997 Newry and Mourne District Council election

Elections to Newry and Mourne District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used five district electoral areas to elect a total of 30 councillors.

1997 Banbridge District Council election

Elections to Banbridge District Council were held on 21 May 1997 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 17 councillors.

Accession of B. J. Habibie

Bacharuddin Jusuf Habibie (Indonesian: [bahaˌrudin ˌjusuf haˈbibi] ; 25 June 1936 – 11 September 2019) was an Indonesian statesman, engineer, scientist and inventor who served as the third president of Indonesia from 1998 to 1999. A little over two months after his inauguration as the seventh vice president in March 1998, he succeeded Suharto, who resigned after 32 years in office, thereby being the country's first vice president to assume the presidency intra-term.

Indonesian president Suharto resigned after a collapse of support for his presidency amid economic and political crises, ending 32 years in power

Suharto (8 June 1921 – 27 January 2008) was an Indonesian general and politician who served as the second and longest-serving president of Indonesia from 1967 to 1998. Suharto was born in Kemusuk, near the city of Yogyakarta, during the Dutch colonial era. He grew up in humble circumstances. His Javanese Muslim parents divorced not long after his birth, and he lived with foster parents for much of his childhood.

1999 Netherlands Antilles island council elections

Island council elections were held in the Netherlands Antilles on 7 May (Curaçao, Saba and Sint Eustatius) and 21 May 1999 (Sint Maarten) to elect the members of the island councils of its five island territories. The election was won by the Party for the Restructured Antilles (5 seats) in Curaçao, the Windward Islands People's Movement (4 seats) in Saba, the Sint Eustatius Alliance (3 seats) in Sint Eustatius, and the Democratic Party (7 seats) in Sint Maarten.

Netherlands

Judgment Day (2000)

Judgment Day (2000) was the first annual Judgment Day professional wrestling pay-per-view event produced by the World Wrestling Federation (WWF). It was presented by 3DO's Army Men: World War and took place on May 21, 2000, at Freedom Hall in Louisville, Kentucky. The main event was an Iron Man match for the WWF Championship and featured Triple H facing The Rock with Shawn Michaels as the special guest referee. Triple H defeated The Rock to win the championship 6 falls to 5, after a disqualification in the final seconds by Shawn Michaels as a result of interference by the returning Undertaker.

Louisville, Kentucky, United States

2000 Executive Airlines British Aerospace Jetstream crash

On May 21, 2000, a British Aerospace BAe-3101 Jetstream 3101 operated by East Coast Aviation Services (known operationally as Executive Airlines) crashed into mountainous terrain in Bear Creek Township, Wilkes-Barre, Pennsylvania. The plane was carrying 17 professional gamblers returning home from Caesar's Palace Casino in Atlantic City, New Jersey, along with 2 crew members. It was chartered by Caesar's Palace (New Jersey). All 19 passengers and crew on board were killed on impact. This accident, alongside the accident of Aerocaribe Flight 7831 were the accidents with the most fatalities involving the Jetstream 3101 airliner. An investigation was conducted by the National Transportation Safety Board.

Pennsylvania, United States

2000 KNVB Cup final

The 2000 KNVB Cup final was a football match between NEC and Roda JC on 21 May 2000 at De Kuip, Rotterdam. It was the final match of the 1999–2000 KNVB Cup competition. Roda JC won 2–0 after goals from Bob Peeters and Eric van der Luer. It was their second KNVB Cup win.

2001 Zagreb local elections

Elections were held in Zagreb on 21 May 2001 for members of the Zagreb Assembly. Milan Bandić, the incumbent mayor since 2000, led the list of the Social Democratic Party of Croatia (SDP), the largest centre-left party in the country and at the time a member of the governing coalition of Croatia. Out of 29 lists that participated in the elections, only four passed the electoral threshold.

Zagreb, Croatia

2002 Portland, Oregon, City Commission election

The 2002 Portland City Commission elections were held on May 21, 2002, and November 5, 2002, to elect two positions on the Portland, Oregon City Council, with a special election to elect an additional position held on September 17, 2002, and November 5, 2002. Incumbents Erik Sten and Dan Saltzman both won re-election to positions 2 and three respectively.

Barbadian general election, 2003

General elections were held in Barbados on 21 May 2003. The result was a victory for the Barbados Labour Party, which won 23 of the 30 seats. Voter turnout was 56.8%, the lowest since universal suffrage was introduced in 1951.

Barbados

2003 Bulgarian Cup final

The 2003 Bulgarian Cup final was the final match of the 2002–03 edition of the Bulgarian Cup competition. It was the 21st consecutive Bulgarian Cup final match after the competition was established and 63rd national cup final overall. The match was held on 21 May 2003 at the Vasil Levski National Stadium in Sofia, Bulgaria. Levski Sofia beat Litex Lovech 2–1.

Bulgaria

2003 UEFA Cup final

The 2003 UEFA Cup final was played on 21 May 2003 between Celtic of Scotland and Porto of Portugal. Porto won the match 3–2 in extra time thanks to a goal from Derlei. Before this game, no club from Scotland or Portugal had won the UEFA Cup. The game had what UEFA described as "the largest travelling support to have assembled for a single game" – around 80,000 Celtic fans travelled to Seville for the final.

2003 Boumerdès earthquake

The 2003 Boumerdès earthquake occurred on May 21 at 19:44:21 local time in northern Algeria. The shock had a moment magnitude of 6.8 and a maximum Mercalli intensity of X (Extreme). The epicentre of the earthquake was located near the town of Thénia in Boumerdès Province, approximately 60 km east of the capital Algiers.

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

Algeria

2005 Greek Football Cup final

The 2005 Greek Cup final was the 61st final of the Greek Cup. The match took place on 21 May 2005 at Pampeloponnisiako Stadium. The contesting teams were Olympiacos and Aris. It was Olympiacos' thirty- first Greek Cup final and second consecutive in their 80 years of existence and Aris' seventh Greek Cup final in their 91-year history.

2005 FA Cup final

The 2005 FA Cup final was a football match played between Arsenal and Manchester United on 21 May 2005 at the Millennium Stadium, Cardiff. It was the final match of the 2004–05 FA Cup, the 124th season of English football's primary cup competition, the FA Cup. Arsenal became the first team to win the FA Cup via a penalty shoot-out, after neither side managed to score in the initial 90 minutes or in 30 minutes of extra time.

The tallest roller coaster in the world, Kingda Ka opens at Six Flags Great Adventure in Jackson Township, New Jersey

Kingda Ka was a hydraulically-launched steel roller coaster located at Six Flags Great Adventure in Jackson, New Jersey, United States. Manufactured by Intamin and designed by Werner Stengel, Kingda Ka opened as the tallest and fastest roller coaster in the world on May 21, 2005, surpassing Top Thrill Dragster at Cedar Point. Although both featured similar designs, Kingda Ka's layout added an airtime hill on the return portion of the track.

Judgment Day (2006)

Judgment Day (2006) was the eighth annual Judgment Day professional wrestling pay-per-view event produced by World Wrestling Entertainment (WWE). It and took place on May 21, 2006 at the US Airways Center in Phoenix, Arizona and featured talent from the SmackDown! brand. In the main event World Heavyweight Champion Rey Mysterio defeated John "Bradshaw" Layfield following a Frog splash. One of the predominant matches on the undercard was Booker T versus Bobby Lashley in the finals of the 2006 King of the Ring tournament, which Booker won after interference from Finlay. Another primary match was Kurt Angle versus Mark Henry, which Henry won after Angle was counted out.

Phoenix, Arizona, United States

Montenegrin independence referendum, 2006

An independence referendum was held in Montenegro on 21 May 2006. It was approved by 55.5% of voters, narrowly passing the 55% threshold. By 23 May, preliminary referendum results were recognized by all five permanent members of the United Nations Security Council, indicating widespread international recognition of Montenegro once independence would be formally declared. On 31 May the referendum commission officially confirmed the results of the referendum, verifying that 55.5% of the population of Montenegrin voters had voted in favor of independence. Because voters met the controversial threshold requirement of 55% approval set by the European Union, the referendum was incorporated into a declaration of independence during a special parliamentary session on 31 May.

Montenegro

Cypriot legislative election, 2006

Parliamentary elections were held in Cyprus on 21 May 2006. AKEL and the Democratic Rally both won 18 of the 56 seats. Voter turnout was 89.0%.

Cyprus

2006 Football League Championship play-off final

The 2006 Football League Championship play-off final was an association football match which was played on 21 May 2006 at the Millennium Stadium in Cardiff, Wales, between Leeds United and Watford. The match was to determine the third and final team to gain promotion from the Football League Championship, the second tier of English football, to the FA Premiership, the top tier.

Wales, United Kingdom

King of the Ring (2006)

The 2006 King of the Ring was the 17th edition of the King of the Ring tournament produced by World Wrestling Entertainment (WWE). The tournament was held between April 14 and May 21, 2006 and was the first tournament conducted since the 2002 tournament which was won by Brock Lesnar.

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

Battle of Abeïbara

On May 21, 2008, Tuareg rebels from the Niger-Mali Tuareg Alliance attacked Malian forces in Abeïbara, Kidal Region, Mali, but were repulsed.

Mali

2008 UEFA Champions League final

The 2008 UEFA Champions League final was a football match that took place on 21 May 2008 at the Luzhniki Stadium in Moscow, Russia, to determine the winner of the 2007–08 UEFA Champions League. It was contested by Manchester United and Chelsea, making it an all-English final for the first time in the history of the competition; it was only the third time that two clubs from the same country had contested the final, after 2000 and 2003.

Russia

2009 Algerian Cup final

The 2009 Algerian Cup final was the 45th final of the Algerian Cup. The final took place on May 21, 2009, at Stade Mustapha Tchaker in Blida with kick-off at 16:00. CR Belouizdad beat CA Bordj Bou Arreridj 2–1 on penalties to win their six Algerian Cup. The competition winners are awarded a berth in the 2010 CAF Confederation Cup.

2009 Danish Cup final

The 2009 Danish Cup final was the final and deciding match of the 2008–09 Danish Cup. It took place on Thursday 21 May 2009 at Parken Stadium in Copenhagen. The then-leader in the Superliga F.C. Copenhagen met AaB, who was in 7th. F.C. Copenhagen won the match 1–0 on a 31st-minute goal by midfielder William Kvist, securing the club their fourth cup title after they won in 1995, 1997 and 2004.

K-1 World Grand Prix 2010 in Bucharest

K-1 World Grand Prix 2010 in Bucharest, billed as Europe's GP, was a kickboxing event held by the K-1 organization in association with the Local Kombat promotion on Friday, May 21, 2010 at the Romexpo Dome in Bucharest, Romania.

Romania

2011 DFB-Pokal final

The 2010–11 DFB-Pokal season came to a close on 21 May 2011 when Duisburg played against Schalke 04 at the Olympiastadion in Berlin. For the first time since 2004, a team from the 2. Bundesliga reached the final. Schalke 04 won the cup for the fifth time after defeating Duisburg 5–0.

Berlin, Germany

2011 Conference Premier play-off final

The 2011 Conference Premier play-off final, known as the 2011 Blue Square Bet Premier play-off final for sponsorship purposes, was a football match between AFC Wimbledon and Luton Town on 21 May 2011 at the Etihad Stadium in Manchester. It was the ninth Conference Premier play-off final and was played in Manchester due to a conflict with the UEFA Champions League final.

Manchester, United Kingdom

Supercard of Honor VI

Supercard of Honor VI was a professional wrestling event produced by Ring of Honor (ROH). It was the 6th Supercard of Honor and took place on May 21, 2011 at Frontier Fieldhouse in Chicago Ridge, Illinois.

Illinois, United States · Chicago, United States

2011 Heineken Cup final

The 2011 Heineken Cup Final was the final match of the 2010–11 Heineken Cup, the 16th season of Europe's top club rugby union competition. The match was played on 21 May 2011 at Millennium Stadium in Cardiff, Wales. The match was contested by Northampton Saints of England and Leinster of Ireland, the second Heineken Cup final for each club. Leinster won the match 33–22 after being 22–6 down at half-time.

Wales, United Kingdom

2011 Scottish Cup final

The 2011 Scottish Cup Final was the 126th final of the Scottish Cup, Scottish football's most prestigious knockout association football competition. The match took place at Hampden Park on 21 May 2011 and was played by Scottish Premier League clubs Motherwell and Celtic. It was Celtic's 54th Scottish Cup final and Motherwell's seventh. Celtic won the title after they defeated Motherwell 3–0.

2011 FA Women's Cup final

The 2011 FA Women's Cup final was the 41st final of the FA Women's Cup, England's primary cup competition for women's football teams. The showpiece event was the 18th to be played directly under the auspices of the Football Association (FA). The final was contested between Arsenal Ladies and Bristol Academy on 21 May 2011 at Ricoh Arena in Coventry. Holders Arsenal made its 11th final win.

2011 Belgian Cup final

The 2011 Belgian Cup final, named Cofidis Cup after the sponsor, was played on 21 May 2011 between Westerlo and Standard Liège. It was the sixth time Standard Liège won the Belgian Cup, 18 years having passed since their last trophy in the competition.

2011 Seychellois presidential election

Presidential elections were held in the Seychelles between 19 and 21 May 2011, commencing on the Outer Islands on 19 May, with Inner Islands voting on 20 May and Mahé on 21 May. The result was a victory for incumbent President James Michel of the Seychelles People's Progressive Front, who received 55% of the vote in the first round.

2011 Challenge de France final

The 2011 Challenge de France final was the 10th final of France's female football cup competition.

2012 Unity Day parade rehearsal bombing

On 21 May 2012, a suicide bomber detonated an explosive belt among groups of Yemeni soldiers rehearsing for the annual Unity Day military parade in Sanaa, Yemen. An 18-year-old soldier recruited as a suicide bomber entered al-Sabeen Square in uniform and joined his Central Security Organization brigade midway through the rehearsal. As the soldiers were passing by the parade view stand, the bomber detonated his explosive belt. The attack, which unsuccessfully attempted to target Yemen's Defense Minister Mohammed Nasser Ahmed, killed at least 96 soldiers and wounded 222, making it one of the worst in Yemen's history.

Yemen

Qafa e Vishës bus accident

The Qafa e Vishës bus accident occurred on 21 May 2012, at Qafa e Vishës (Albanian pronunciation: [cafa ɛ viʃəs]) near Himarë, Albania, when a bus plunged 80 metres (260 ft) off a cliff. Most of the victims were students of Aleksandër Xhuvani University of Elbasan. The driver is also believed to have been killed. The students were travelling from Elbasan to Saranda.

Albania

2013 Los Angeles mayoral election

An election was held on March 5, 2013, to elect the mayor of Los Angeles. No candidate received a majority of the primary votes to be elected outright, and the top two finishers, Eric Garcetti and Wendy Greuel advanced to a runoff vote. On May 21, 2013, Garcetti was elected mayor with a majority of the votes in the runoff.

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

2014 Slovenian Football Cup final

The 2014 Slovenian Cup final was the final match of the 2013–14 Slovenian Cup, the 23rd edition of the Slovenian Football Cup, the top knockout tournament of Slovenian football and the second most important football competition in the country after the Slovenian PrvaLiga championship. The match was played on Wednesday, 21 May 2014 at the Bonifika Stadium in Koper, Slovenia and was won by Gorica who defeated Maribor with the score 2–0.

Slovenia

2014 Taipei Metro attack

On 21 May 2014, a Taiwanese man carried out a stabbing spree targeting random civilians on a Taipei Metro C321 train near Jiangzicui Station, resulting in four deaths and 24 injuries. It was the first fatal attack on the city's subway system since operations began in 1996. The attacker, 21-year-old Cheng Chieh, was arrested after the attack.

Battle of Kidal (2014)

The Second Battle of Kidal took place during the Mali War, when MNLA forces in control of Kidal attacked Prime Minister Moussa Mara's convoy during a visit to the town. Consequently, Malian government forces launched an offensive to retake the city, successfully recapturing it. Since the foreign intervention in Mali, Kidal was retaken by French, Malian, and Chadian troops.

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

Mali

2015 Russian Cup final

The 2015 Russian Cup final decided the winner of the 2014–15 Russian Cup, the 23rd season of Russia's main football cup. It was played on 21 May 2015 at the Central Stadium in Astrakhan, between Lokomotiv Moscow and Kuban Krasnodar. Lokomotiv came back from behind and emerged victorious with a 3-1 win in extra time.

2016 Scottish Cup final

The 2016 Scottish Cup Final was the 131st final of the Scottish Cup and the final of the 2015–16 Scottish Cup, the most prestigious knockout football competition in Scotland. The match took place at Hampden Park on 21 May 2016 and was contested by Scottish Championship teams Rangers and Hibernian. It was the first final to be contested by two teams from outside the top tier of the Scottish football league system.

Scotland, United Kingdom

2016 FA Cup final

The 2016 FA Cup final was an association football match between Crystal Palace and Manchester United on 21 May 2016 at Wembley Stadium in London, England, organised by the Football Association (FA). It marked the 135th final of the Football Association Challenge Cup (FA Cup) and was the showpiece match of English football's primary cup competition. It was Manchester United's first FA Cup final appearance since 2007, when they lost 1–0 to Chelsea.

England, United Kingdom · London, United Kingdom

2016 Indian Federation Cup final

The 2016 Indian Federation Cup final was a football match played on 21 May 2016 at the Indira Gandhi Stadium in Guwahati between Aizawl and Mohun Bagan. Mohun Bagan won the final by defeating Aizawl 5–0 with a brace from Jeje Lalpekhlua and goals each from Sony Norde, Dhanachandra Singh and Bikramjit Singh.

India

2016 DFB-Pokal final

The 2016 DFB-Pokal final decided the winner of the 2015–16 DFB-Pokal, the 73rd season of Germany's premier knockout football cup competition. It was played on 21 May 2016 at the Olympiastadion in Berlin. Borussia Dortmund, who had lost in the two previous finals, faced Bayern Munich, the record title-holders. Bayern won 4–3 on penalties, as the match had finished 0–0 after extra time, giving Bayern their 18th title.

Berlin, Germany

2016 Ukrainian Cup final

The 2016 Ukrainian Cup final was a football match that was played on 21 May 2016 in Lviv. For the first time the cup final was held in Lviv. The match was the 25th Ukrainian Cup Final and was contested by Zorya Luhansk and Shakhtar Donetsk.

2016 Coppa Italia final

The 2016 Coppa Italia final decided the winner of the 2015–16 Coppa Italia, Italy's main football cup. It was played on 21 May 2016 at the Stadio Olimpico in Rome, between rivals Milan and Juventus. Since Juventus won the 2015–16 Serie A, Milan secured their place in the 2016 Supercoppa Italiana. Juventus won the match 1–0 after extra time, with a 110th-minute goal by the substitute Álvaro Morata with his first touch, successfully defending their title.

2016 Coupe de France final

The 2016 Coupe de France final decided the winner of the 2015–16 Coupe de France, the 99th season of France's all-main-divisions football cup. It took place on 21 May at the Stade de France in Saint-Denis, Paris. In the final, Olympique de Marseille took on arch-rivals Paris Saint-Germain, in a rematch of the 2006 final, which PSG won 2–1.

Killing of Akhtar Mansur

On 21 May 2016, Akhtar Mansur, the second leader of the Taliban, was killed in a U.S. military drone strike on the N-40 National Highway in Pakistan near Ahmad Wal, not far from the Pakistan–Afghanistan border; Mansur had crossed earlier that day from Iran into Pakistan through the Taftan, Balochistan, border crossing, some 450 kilometres (280 mi) away from the spot where he was killed.

Backlash (2017)

The 2017 Backlash was a professional wrestling pay-per-view (PPV) and livestreaming event produced by WWE, held exclusively for wrestlers from the promotion's main roster brand, SmackDown. It was the 13th Backlash and took place on May 21, 2017, at the Allstate Arena in the Chicago suburb of Rosemont, Illinois. Eight matches were contested at the event, including one on the Kickoff pre-show.

Illinois, United States

3rd Justice and Development Party Extraordinary Congress

The 3rd Justice and Development Party Extraordinary Congress took place on 20 and 21 May 2017 in order to elect a party leader and members to the party congress of Turkey's ruling Justice and Development Party (AK Party). The party's founder and first leader, Recep Tayyip Erdoğan, was the only candidate for the post, having left the leadership upon his election as President in 2014.

Turkey

2017 Indian Federation Cup final

The 2017 Indian Federation Cup final was a football match between Bengaluru FC and Mohun Bagan played on 21 May 2017 at Barabati Stadium in Cuttack. Bengaluru FC won their second Federation Cup title after having won the first time in 2014–15.

2017 FA Vase final

The 2016–17 FA Vase final was the 43rd final of the Football Association's cup competition for teams at levels 9–11 of the English football league system. The match was contested between Cleethorpes Town and South Shields. This was first time both teams had reached the final and their first visit to Wembley Stadium. The final of the FA Trophy was played on the same day at the same venue for the second year running.

United Kingdom

2017 FA Trophy final

The 2016–17 FA Trophy Final was the 48th final of the Football Association's cup competition for teams at levels 5–8 of the English football league system. The match was contested between Macclesfield Town and York City. The final of the FA Vase was played on the same day at the same venue for the second year running. Both matches were televised in the UK on BT Sport.

United Kingdom

2017 Rijeka local elections

The 2017 Rijeka local elections were held on 21 May and 4 June 2017 for the Mayor of Rijeka and members of the Rijeka city council. Vojko Obersnel, the 14th and incumbent mayor who has been in office since 2000, ran for a sixth consecutive four-year term, finishing in 1st place with 41,00% of the vote in the first round.

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

Southern Damascus offensive (April–May 2018)

The Southern Damascus offensive began on 19 April 2018 when the Syrian Arab Armed Forces began to clear an enclave held by the Islamic State (IS) in southern Damascus in the Yarmouk Camp.

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

Syria

2019 Pennsylvania's 12th congressional district special election

A special election was held on May 21, 2019, to fill the remainder of the term for Pennsylvania's 12th congressional district in the United States House of Representatives for the 116th United States Congress. Tom Marino, a Republican, resigned from office effective January 23.

Pennsylvania, United States

2019 Malawian general election

General elections were held in Malawi on 21 May 2019 to elect the President, National Assembly and local government councillors. Incumbent President Peter Mutharika of the Democratic Progressive Party was re-elected, with his party remaining the largest in the National Assembly. On 3 February 2020, the Constitutional Court annulled the presidential election results due to evidence of irregularities, and ordered fresh elections be held.

Malawi

2019 United States House of Representatives elections

There were three special elections to the United States House of Representatives in 2019 during the 116th United States Congress. Two of the three seats were won by the party previously holding the seat. One seat, which was left vacant, was picked up by the Republican Party.

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

United States

2020 Podemos state party assembly

The 2020 Podemos state assembly—officially the 3rd Citizen Assembly, and more informally referred to as Vistalegre III—was held virtually between 15 and 21 May 2020. The assembly was set to be celebrated on March, but the coronavirus pandemic in Spain delayed it until mid-May.

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

Bellator 259

Bellator 259: Cyborg vs. Smith 2 was a mixed martial arts event that was produced by Bellator MMA at Mohegan Sun Arena in Uncasville, Connecticut.

2022 Australian federal election

A federal election was held on 21 May 2022 to elect members of the 47th Parliament of Australia. The incumbent Liberal–National Coalition government, led by Prime Minister Scott Morrison, sought to win a fourth consecutive term in office but was defeated by the Labor Party, led by Opposition Leader Anthony Albanese.

Australia

2022 EFL League One play-off final

The 2022 EFL League One play-off final was an association football match between Wycombe Wanderers and Sunderland on 21 May 2022 at Wembley Stadium, London. It was to determine the third and final team to gain promotion from EFL League One, the third tier of English football, to the EFL Championship.

London, United Kingdom

2022 Scottish Cup final

The 2022 Scottish Cup Final was the 137th final of the Scottish Cup and the final of the 2021–22 Scottish Cup, the most prestigious knockout football competition in Scotland. The match was played on 21 May 2022 at Hampden Park, Glasgow. St Johnstone, the defending champions were defeated in Round Four. Rangers beat Heart of Midlothian 2–0 in extra time.

Glasgow, United Kingdom

2022 DFB-Pokal final

The 2022 DFB-Pokal final was an association football match played between RB Leipzig and SC Freiburg at the Olympiastadion in Berlin on 21 May 2022. Organized by the German Football Association (DFB), it was the 79th final of the competition and the first match which allowed full capacity in two years, due to the COVID-19 pandemic in Germany.

Berlin, Germany

Bourzanga attack

On May 21, 2022, jihadists from Jama'at Nasr al-Islam wal-Muslimin attacked the city of Bourzanga, Burkina Faso, but the attack was repelled by Burkinabe and French forces.

Burkina Faso

2022 Australian Senate election

The 2022 Australian Senate election was held on 21 May 2022 to elect 40 of the 76 senators in the Australian Senate as part of the 2022 federal election. Senators elected at this election took office on 1 July 2022, with the exception of the senators elected from two territories whose terms commenced from election day.

Australia

2022 UEFA Women's Champions League final

The 2022 UEFA Women's Champions League final was the final match of the 2021–22 UEFA Women's Champions League, the 21st season of Europe's premier women's club football tournament organised by UEFA, and the 13th season since it was renamed from the UEFA Women's Cup to the UEFA Women's Champions League. The match was played at the Juventus Stadium in Turin, Italy on 21 May 2022, between Spanish club Barcelona and French club Lyon, a repeat of the 2019 final.

Turin, Italy

UFC Fight Night: Holm vs. Vieira

UFC Fight Night: Holm vs. Vieira (also known as UFC Fight Night 206, UFC on ESPN+ 64 or UFC Vegas 55) was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on May 21, 2022, at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States.

Nevada, United States

2022 Greek Football Cup final

The 2022 Greek Cup final was the 78th final of the Greek Cup. It took place on 21 May 2022 at the Olympic Stadium. The contesting teams were Panathinaikos and PAOK. It was Panathinaikos' thirtieth Greek Cup final in their 114 years of existence and PAOK's twenty second Greek Cup final and second consecutive, of their 96-year history.

Results of the 2022 Australian federal election in Western Australia

The 2022 Australian federal election was held on 21 May 2022 to elect all 151 members of the Australian House of Representatives and 40 of 76 members of the Australian Senate. Of those, 15 MPs and 6 senators were elected to represent the state of Western Australia. This election was held using Instant-runoff voting. In Western Australia in this election, there were two "turn-overs".

Results of the 2022 Australian federal election in territories

This is a list of division results for the 2022 Australian federal election in the Australian Capital Territory and the Northern Territory. This election was held using Instant-runoff voting. In this election, in the Australian Capital Territory (ACT) and the Northern Territory, there were no "turn-overs." In each district, the candidate leading in the first count took the seat, either in the first count or in the end.

Results of the 2022 Australian federal election in South Australia

This is a list of electoral division results for the 2022 Australian federal election in the state of South Australia. This election was held using instant-runoff voting. In South Australia in this election, there was one "turn-over". In Boothby, a Labor candidate who did not lead in the first count took the seat in the end.

Results of the 2022 Australian federal election in Victoria

This is a list of electoral division results for the 2022 Australian federal election in the state of Victoria.

Results of the 2022 Australian federal election in New South Wales

This is a list of electoral division results for the 2022 Australian federal election in the state of New South Wales. This election was held using Instant-runoff voting (often referred to locally as preferential voting), a form of ranked voting where voters order candidates in order of preference.

Results of the 2022 Australian federal election in Queensland

This is a list of electoral division results for the 2022 Australian federal election in the state of Queensland. This election was held using instant-runoff voting. In Queensland in this election, there were two "turn-overs"—the Australian Greens took two seats where the Greens candidate was not leading in the first count. These took place in Brisbane and Ryan.

Results of the 2022 Australian federal election in Tasmania

This is a list of electoral division results for the 2022 Australian federal election in the state of Tasmania. This election was held using instant-runoff voting. In Tasmania in this election, there was one "turn-over". In Lyons, a Labor candidate who did not lead in the first count took the seat in the end, albeit very marginally. The Liberal candidate finished first before the distribution of preferences.

May 2023 Greek parliamentary election

Snap parliamentary elections were held in Greece on 21 May 2023 to elect all 300 members of the Hellenic Parliament. They were the first elections since 1990 to be held without a seat bonus, due to amendments to the electoral law made in 2016. The elections instead used a system of proportional representation. The New Democracy of Prime Minister Kyriakos Mitsotakis achieved victory, winning a plurality.

Greece

2023 FA Trophy final

The 2023 FA Trophy final was an association football match played at Wembley Stadium, London, on 21 May 2023. It was contested between FC Halifax Town and Gateshead. It was Halifax's second final following their victory in 2016 which was their only previous visit to the national stadium, and Gateshead's first FA Trophy final and first visit to Wembley since 2014.

London, United Kingdom

NJPW Resurgence (2023)

Resurgence (2023) was a professional wrestling pay-per-view (PPV) event produced by New Japan Pro-Wrestling (NJPW). It took place on May 21, 2023, at the Walter Pyramid in Long Beach, California. It was the second event under the Resurgence name. Ten matches were contested at the event, including two on the pre-show. In the main event, Willow Nightingale defeated Mercedes Moné to win the inaugural Strong Women's Championship.

California, United States

2023 FA Vase final

The 2023 FA Vase final was the 49th final of the Football Association's cup competition for teams at levels 9–11 of the English football league system. The match was contested between Ascot United of the Combined Counties League Premier Division North and Newport Pagnell Town of the United Counties League Premier Division South. Newport Pagnell Town entered the game as the defending champions, reaching the final for the second successive season.

2024 Oregon Democratic presidential primary

The 2024 Oregon Democratic presidential primary was held on May 21, 2024, as part of the Democratic Party primaries for the 2024 presidential election, alongside Kentucky's primary and two days before Idaho's caucuses. 66 delegates to the Democratic National Convention were allocated, with 12 additional unpledged delegates. Incumbent President Joe Biden won the primary with almost 90% ahead of the only other candidate Marianne Williamson.

Oregon, United States

2024 Kentucky Democratic presidential primary

The 2024 Kentucky Democratic presidential primary was held on May 21, 2024, as part of the Democratic Party primaries for the 2024 presidential election, alongside Oregon's and two days before Idaho's primary. 53 delegates to the Democratic National Convention were allocated in the closed primary, with 6 additional unpledged delegates.

Kentucky, United States

2024 Taichung MRT attack

On 21 May 2024, a Taiwanese man carried out a stabbing spree directed at passengers on a Taichung MRT train, near Taichung City Hall station. Three people, including the attacker, were injured. The attack occurred exactly ten years after the 2014 Taipei Metro attack.

Greenfield tornado

On the afternoon of May 21, 2024, a violent and destructive tornado tracked across southwestern Iowa, United States, devastating the city of Greenfield. The tornado, known most commonly as the Greenfield tornado, destroyed many buildings and wind turbines across its path that stretched through Page, Taylor, Adams, and Adair counties, while also causing more than $31 million in property damage, killing five people and injuring 35 more.

2024 Georgia judicial elections

The 2024 Georgia judicial elections were held on May 21, 2024 on four Supreme Court of Georgia seats that were up for election for a six-year term. Of these four, only the seat held by Andrew Pinson was contested by former Democratic U.S. House member John Barrow. Justices Michael Boggs, John Ellington and Nels Peterson were unopposed for re-election.

United States

2024 Multnomah County District Attorney election

The 2024 Multnomah County District Attorney election was held on May 21, 2024, to elect the district attorney of Multnomah County, Oregon, which includes the state's largest city, Portland. Senior deputy district attorney Nathan Vasquez defeated incumbent Mike Schmidt. Since Vasquez won a majority of the vote in this primary election, there was no general election for this office in November 2024.

2024 Pictou West provincial by-election

A by-election was held in the provincial riding of Pictou West in Nova Scotia on May 21, 2024, to elect a new member of the Nova Scotia House of Assembly following the resignation of Progressive Conservative MLA Karla MacFarlane. The deadline for candidate nominations is May 1, 2024. Progressive Conservative Premier Tim Houston called the by-election quickly, only two weeks after MacFarlane's resignation, suggesting the party is confident they will hold the seat.

2024 California's 20th congressional district special election

The 2024 California's 20th congressional district special election was held on March 19, 2024, with a runoff on May 21 because no candidate received more than 50% of the vote in the first round. It elected a new member of the United States House of Representatives to replace Kevin McCarthy, who resigned on December 31, 2023, following his removal as speaker of the House.

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

United States

2025 St. James North by-election

A by-election was held in the Barbadian constituency of Saint James North on 21 May 2025, following the resignation of incumbent Barbados Labour Party (BLP) Member of Parliament Edmund Hinkson, who had represented the constituency since the 2013 Barbadian general election. It was the first by-election held after Barbados became a republic.

Barbados

2025 UEFA Europa League final

The 2025 UEFA Europa League final was the final match of the 2024–25 UEFA Europa League, the 54th season of Europe's secondary club football tournament organized by UEFA, and the 16th season since it was renamed from the UEFA Cup to the UEFA Europa League. The match was played at San Mamés in Bilbao, Spain, on 21 May 2025, between English clubs Tottenham Hotspur and Manchester United.

Spain

2025 Abujhmarh clash

The 2025 Abujhmarh clash was an encounter between Communist Party of India (Maoist) and Indian security forces in the Abujhmarh forest area in Chhattisgarh, India. It was among the deadliest clashes in the recent history of the Naxalite–Maoist insurgency in India. The Maoist leader Nambala Keshava Rao, having a combined bounty of ₹3.5 Crore (around US$410,000), was killed in the encounter.

India