5月20日发生过什么？

Battle of Dun Nechtain

The Battle of Dun Nechtain or Battle of Nechtansmere (Scottish Gaelic: Blàr Dhùn Neachdain, Old Irish: Dún Nechtain, Old Welsh: Linn Garan, Old English: Nechtansmere) was fought between the Picts, led by King Bridei Mac Bili, and the Northumbrians, led by King Ecgfrith on 20 May 685. The Northumbrian hegemony over Northern Britain, won by Ecgfrith's predecessors, had begun to disintegrate. Several of Northumbria's subject nations had rebelled in recent years, leading to a number of large-scale battles against the Picts, Mercians, and Irish, with varied success.

Angus, Scotland, United Kingdom · Dunachton, United Kingdom · Dunnichen, United Kingdom

Christopher Lekapenos is crowned Byzantine co-emperor by his father, emperor Romanos I Lekapenos, on the feast of Whitsun

Christopher Lekapenos or Lecapenus (Greek: Χριστόφορος Λακαπηνός or Λεκαπηνός, romanized: Christóphoros Lakapēnos or Lekapēnos; died August 931) was the eldest son of Emperor Romanos I Lekapenos (r. 920–944) and co-emperor of the Byzantine Empire from 921 until his death in 931. Christopher was given the position of megas hetaireiarches (commander of the palace guard) in spring 919, after Romanos assumed guardianship of the underage Emperor Constantine VII.

A Magyar raiding army defeats forces of the Muslim frontier state of Fraxinetum

A Hungarian raid in Spain took place in July 942. This was the furthest west the Hungarians raided during the period of their migration into central Europe; although, in a great raid of 924–25, the Hungarians sacked Nîmes and may have got as far as the Pyrenees. The only contemporary reference to the Hungarians crossing the Pyrenees into Spain is in al-Maʿsūdī, who wrote that "their raids extend to the lands of Rome and almost as far as Spain".

1202 Syria earthquake

The 1202 Syria earthquake struck at about dawn on 20 May 1202 (598 AH) with an epicenter in southwestern Syria. The earthquake is estimated to have killed around 30,000 people. It was felt over an extensive area, from Sicily to Mesopotamia and Anatolia to upper Egypt, mostly affecting the Ayyubid Sultanate and the Kingdom of Jerusalem. The cities of Tyre, Acre and Nablus were heavily damaged.

Battle of Lincoln (1217)

The Second Battle of Lincoln occurred at Lincoln Castle on Saturday 20 May 1217, during the First Barons' War, between the forces of the future Louis VIII of France and those of King Henry III of England. Louis's forces were attacked by a relief force under the command of William Marshal, 1st Earl of Pembroke.

England, United Kingdom

King Sancho IV of Castile creates the Estudio de Escuelas de Generales in Alcalá de Henares

The Complutense University of Madrid (Spanish: Universidad Complutense de Madrid, UCM; Latin: Universitas Complutensis Matritensis) is a public research university located in Madrid. Founded in Alcalá in 1293 (before relocating to Madrid in 1836), it is one of the oldest operating universities in the world. It is located on a sprawling campus that occupies the entirety of the Ciudad Universitaria district of Madrid, with annexes in the district of Somosaguas in the neighboring city of Pozuelo de Alarcón.

King Mohnyin Thado formally ascends to the throne of Ava

Mohnyin Thado (Burmese: မိုးညှင်း သတိုး, pronounced [móɲ̥ɪ́ɴ ðədó]; Shan: မိူင်းယၢင်းထၢတ်ႈဢူး, Mongyang That Oo; 1379–1439) was king of Ava from 1426 to 1439. He is also known in Burmese history as Mohnyin Min Taya (မိုးညှင်း မင်းတရား, [móɲ̥ɪ́ɴ mɪ́ɴ təjá], "Righteous Lord of Mohnyin") after his longtime tenure as the sawbwa of Mohnyin, a Shan-speaking frontier state (in present-day Kachin State, Myanmar).

Battle of Alfarrobeira

The Battle of Alfarrobeira (Portuguese pronunciation: [aɫfɐʁuˈbɐjɾɐ]) took place on 20 May 1449. It was a confrontation between the forces commanded by King Afonso V of Portugal and his uncle Afonso, Duke of Braganza, against the army of the rebellious Peter, Duke of Coimbra. The place was Alverca do Ribatejo, near Lisbon, at the margins of the creek of Alfarrobeira. The result was the clear defeat and death of the Duke of Coimbra and the establishment of the Braganzas as the most powerful House of Portugal.

Portugal

Portuguese explorer Vasco da Gama discovers the sea route to India when he arrives at Kozhikode (previously known as Calicut), India

Vasco da Gama ( VAS-koo də GA(H)M-ə, European Portuguese: [ˈvaʃku ðɐ ˈɣɐmɐ]; c. 1460s – 24 December 1524) was a Portuguese mariner, explorer and nobleman. His discovery of the first maritime route between Europe and India—around the Cape of Good Hope, then across the Indian Ocean from Malindi in Kenya to Kozhikode—opened up European exploration of, and commerce with, India, and is considered a landmark event in world history.

Battle of Pampeluna

The Battle of Pampluna or Battle of Pamplona was a battle fought during the Italian War of 1521–1526 on 20 May 1521 during which forces led by the Kingdom of Navarre with support from France conquered the Fortress of Pamplona from Spain. The battle coincided with an uprising by a part of the Navarrese population and the swift reconquest of all of Navarre from the Spanish.

Spain

Battle of Kyōkōji

The 1562 Battle of Kyōkōji (教興寺の戦い, no Tatakai) was one of many battles fought between the Miyoshi and Hatakeyama in Japan's Sengoku period. On 19–20 May of that year, the battle was won by Miyoshi Nagayoshi over Hatakeyama Takamasa.

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

Japan

Shakespeare's sonnets are first published in London, perhaps illicitly, by the publisher Thomas Thorpe

William Shakespeare (c. 23 April 1564 – 23 April 1616) wrote sonnets on a variety of themes. When discussing or referring to Shakespeare's sonnets, it is almost always a reference to the 154 sonnets that were first published all together in a quarto in 1609. However, there are six additional sonnets that Shakespeare wrote and included in the plays Romeo and Juliet, Henry V and Love's Labour's Lost.

Sack of Magdeburg

The Sack of Magdeburg, also called the Magdeburg Wedding (German: Magdeburger Hochzeit) or Magdeburg's Sacrifice (Magdeburgs Opfergang), was the destruction of the Protestant city of Magdeburg on 20–24 May 1631 by the Imperial Army and the forces of the Catholic League, resulting in the deaths of around 20,000, including both defenders and civilians. This event is considered the worst massacre of the Thirty Years' War.

Saxony-Anhalt, Germany

Battle of Les Avins

The Battle of Les Avins or Battle of Avein was fought on 20 May 1635 during the Thirty Years' War between a French and a Spanish army. The battle was fought in the Belgian village of Les Avins, south of Huy, in what was then the bishopric of Liège. It was the first serious engagement for the French, which had entered the war only three months before. The French army was under command of Marshals of France Urbain de Maillé-Brézé and Gaspard III de Coligny, Maréchal de Châtillon.The Spanish were commanded by Thomas Francis, Prince of Carignano.

Belgium

Yangzhou massacre

The Yangzhou massacre took place in 1645 in Yangzhou, China, during the Qing dynasty. Mass killings of residents in Yangzhou were conducted by Qing troops under the command of Prince Dodo after they conquered the city from forces loyal to the Southern Ming regime of the Hongguang Emperor. The massacre lasted ten days after the city fell on May 20, 1645. Traditionally, the number of victims was reported as close to 800,000, although some modern scholars consider it an exaggeration. The defending commander, Shi Kefa, was also executed by Qing forces after he refused to submit to their authority.

People's Republic of China

Battle of Nevis

The Battle of Nevis on 20 May 1667 was a confused naval clash in the Caribbean off the island of Nevis during the closing stages of the Second Anglo-Dutch War. It was fought between an English squadron and an Allied Franco-Dutch fleet intent on invading the island. The battle ended up being an English victory in that it prevented a Franco-Dutch invasion of Nevis.

Johann Sebastian Bach leads the first performance of his cantata for Pentecost, Erschallet, ihr Lieder, BWV 172, at the chapel of Schloss Weimar

Johann Sebastian Bach (31 March [O.S. 21 March] 1685 – 28 July 1750) was a German composer and musician of the late Baroque period. He is known for his prolific output across a variety of instruments and forms, including the orchestral Brandenburg Concertos; solo instrumental works such as the Cello Suites and Sonatas and Partitas for Solo Violin; keyboard works such as the Goldberg Variations and The Well-Tempered Clavier; organ works such as the Schübler Chorales and the Toccata and Fugue in D minor; and choral works such as the St.

Battle of Cartagena de Indias

The Battle of Cartagena de Indias (Spanish: Sitio de Cartagena de Indias, lit. 'Siege of Cartagena de Indias') took place during the 1739 to 1748 War of Jenkins' Ear between Spain and Great Britain. The result of long-standing commercial tensions, the war was primarily fought in the Caribbean; the British tried to capture key Spanish ports in the region, including Porto Bello and Chagres in Panama, Havana, and Cartagena de Indias in present-day Colombia.

The Battle of Cartagena de Indias ends in a Spanish victory and the British begin withdrawal towards Jamaica with substantial losses.

Battle of Korpoström

The Battle at Korpoström was a naval engagement that took place during the Russo-Swedish war of 1741–1743. The battle occurred on May 20, 1743, near Korpoström, Finland, and resulted in a decisive Russian victory. The Swedish fleet, commanded by Abraham Falkengréen, consisted of 31 ships, primarily composed of lightly armed galleys. The Russian forces, led by James Keith, fielded 21 ships, also mainly consisting of lightly armed galleys.

Finland

Capture of Vigilant

The Capture of Vigilant was an incident in May 1745 of the naval warfare of King George's War. British forces captured the French vessel Vigilant off Nova Scotia. It involved Commodore Warren in HMS Superb (60 guns), Captain Durell in HMS Eltham (40 guns), Captain Calmady in HMS Launceston, Captain Douglas in HMS Mermaid and Captain John Rous of HMS Shirley Galley who fought the French ship Vigilant (64 guns) off Louisbourg.

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

Battle of Minorca (1756)

The Battle of Minorca was a fleet action fought on 20 May 1756 between the French and British navies during the Seven Years' War. Fought off Minorca shortly after the war began, it was the opening naval battle of the war's European theatre and resulted in a French strategic victory. The decision by the British fleet's commander, Admiral of the Blue John Byng, to withdraw to Gibraltar led directly to the fall of Minorca.

Action of Tyniec Abbey

The action of (the) Tyniec Abbey was an engagement between the armies of the Russian Empire and the Bar Confederation that took place on 20 May 1771. Russian Major-General Suvorov, in co-operation with Lieutenant-Colonel Shepelev's cavalry, assaulted Lieutenant-Colonel Dumouriez's army on a mountain redoubt fortified with a palisade, trous de loup, and two cannons; near the Tyniec Abbey, the village of Tyniec; but after taking the redoubt twice, they were twice repulsed, however, managed to capture all the cannons; Suvorov refused to retake the redoubt, and withdrew to meet Dumouriez, who had meanwhile brought reinforcements, in the third confrontation at Lanckorona.

Mecklenburg Declaration of Independence

The Mecklenburg Declaration of Independence is claimed by some to be the first declaration of independence made in the Thirteen Colonies during the American Revolution. It was supposedly signed on May 20, 1775, at Charlotte, North Carolina, by a committee of citizens of Mecklenburg County, who declared independence from Great Britain after hearing of the battle of Lexington. If the story is true, the Mecklenburg Declaration preceded the United States Declaration of Independence by more than a year. The authenticity of the Mecklenburg Declaration has been disputed since it was first published in 1819, forty-four years after it was reputedly written.

North Carolina, United States

Battle of Barren Hill

The Battle of Barren Hill was a minor engagement during the American Revolution. On May 20, 1778, a British force attempted to encircle a smaller Continental force under the Marquis de Lafayette. The maneuver failed, with the Continentals escaping the trap, but the British took the field.

Pennsylvania, United States

Siege of Mangalore

The Siege of Mangalore was conducted during the Second Anglo-Mysore War by Tipu Sultan and forces of the Kingdom of Mysore against a British East India Company garrison led by Colonel Campbell. The port city of Mangalore on the west coast of India was besieged from 20 May 1783 until the garrison capitulated on 30 January 1784 after being reduced to starvation; of the original garrison of 700 British soldiers and 2000 Indian troops there were only 850 survivors. The siege was one of the last major actions of the war; Mangalore was where the treaty ending the war was signed in March 1784.

Mangalore, India

Expedition to Ostend

The British expedition to Ostend took place on 18 May 1798 during the French Revolutionary Wars. The expedition was intended to destroy the gun-boats harboured in Ostend, since they were destined to take part in the planned invasion of Britain. It also hoped to destroy the infrastructure of the port including the locks, basin-gates, and sluices of the Bruges–Ostend Canal.

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

Battle of Tamatave

The Battle of Tamatave (sometimes called the Battle of Madagascar or the Action of 20 May 1811) was fought off Tamatave in Madagascar between British and French frigate squadrons during the Napoleonic Wars. The action was the final engagement of the Mauritius campaign of 1809–1811, and it saw the destruction of the last French attempt to reinforce their garrison on Mauritius. Although the news had not reached Europe by February 1811 when the reinforcement squadron left Brest, Mauritius had been captured in December 1810 by a British invasion fleet, the French defences hampered by the lack of the supplies and troops carried aboard the frigate squadron under the command of Commodore François Roquebert in Renommée.

Toamasina, Madagascar

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.

Germany

Neapolitan War

The Neapolitan War, also known as the Austro-Neapolitan War, was a conflict between the Napoleonic Kingdom of Naples and the Austrian Empire. It started on 15 March 1815, when King Joachim Murat declared war on Austria, and ended on 20 May 1815, with the signing of the Treaty of Casalanza. The war occurred during the Hundred Days between Napoleon's return from exile and before he left Paris to be decisively defeated at the Battle of Waterloo.

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

Italy

Battle of Maniaki

The Battle of Maniaki was fought on May 20, 1825 in Maniaki, Greece (in the hills east of Gargalianoi) between Egyptian forces led by Ibrahim Pasha and Greek forces led by Papaflessas.

Greece

Gran Colombia–Peru War

The Gran Colombian–Peruvian War (Spanish: Guerra grancolombo-peruana) of 1828 and 1829 was the first international conflict fought by the Republic of Peru, which had gained its independence from Spain in 1821, and Gran Colombia, that existed between 1819 and 1830.

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

Ecuador

Battle of Atly-Boyun

The Battle of Atly-Boyun was fought on 20 May 1831 during the Caucasian War between Russian forces and a coalition of Dagestani rebels from the North Caucasian Imamate and the Tarki Shamkhalate. It ended in a significant victory for the rebels and marked an important moment in the early military career of Imam Ghazi Muhammad.

Battle of Taku Forts (1858)

The First Battle of Taku Forts was the first invasion of the Anglo-French alliance against the Taku Forts along the Hai River in Tianjin, China, on 20 May 1858, during the Second Opium War. The British and French sent a squadron of gunboats, under Rear-Admiral Admiral Michael Seymour, to attack China's Taku Forts. The battle ended as an allied success. However, the first phase of the Second Opium War would end with the Treaties of Tianjin and the forts were returned to the hands of the Qing Army, leading to the Second Battle of Taku Forts in 1859.

Tianjin, People's Republic of China

Battle of Montebello (1859)

The Battle of Montebello was fought on 20 May 1859 at Montebello (in what is now Lombardy, northern Italy). It was a minor engagement of the Second Italian War of Independence, fought between Piedmontese cavalry and French infantry against Austrian troops.Because of this battle, the Austrian commander in chief was obliged to keep some troops to cover the southern part of the front.

Italy

After the Southern states seceded from the Union in 1861 (and their representatives had left Congress), the bill passed and was signed into law by President Abraham Lincoln (May 20, 1862)

The Homestead Acts were several laws in the United States by which an applicant could acquire ownership of government land or the public domain, typically called a homestead. In all, more than 160 million acres (650 thousand km2; 250 thousand sq mi) of public land, or nearly 10 percent of the total area of the United States, were given away free to 1.6 million homesteaders; most of the homesteads were west of the Mississippi River.

La Paz incident

The La Paz incident occurred on May 20, 1863, at the mining town of La Paz, Arizona. William "Frog" Edwards, only recently released from detention at Fort Yuma, ambushed a party of Union soldiers when they stopped at La Paz to purchase supplies. Edwards' attack killed one soldier and wounded two more. Edwards then fled into the desert where he died of exposure and dehydration.

Arizona, United States

Battle of Ware Bottom Church

The Battle of Ware Bottom Church was fought on May 20, 1864, between Union and Confederate forces during the American Civil War. The Union troops were led by Benjamin Butler, while the Confederates were led by P.G.T. Beauregard. The Confederates were victorious, and Butler's forces remained in their Bermuda Hundred defenses. Following the battle, the Confederates began digging a critical set of defensive earthworks that became known as the Howlett Line.

Chesterfield County, Virginia, United States · Virginia, United States

Assault of Paso Cidra

The Assault of Paso Cidra was an allied military operation during the Paraguayan War, which took place on May 20, 1866, in Estero Bellaco, Paraguay. The action consisted of the assault by Brazilian forces of the 2nd Infantry Battalion, under the command of Vanderlei Lins, subordinate of Uruguayan general Venâncio Flores, to a Paraguayan entrenched position, defended by men of Lieutenant Colonel Avelino Cabral.

Paraguay

Battle of Irjar

The Battle of Irjar was a battle between the Russian Empire and the Emirate of Bukhara on May 20, 1866, near Irjar, a narrow pass on the left bank of the Syr Darya river, between Chinoz and Khujand. It was fought between a Russian contingent commanded by Major Romanovsky against the Bukharans of Muzaffar bin Nasrullah.

Russian conquest of Bukhara

The Russian conquest of Bukhara, better known as the Russo-Bukharan War, was a series of wars, invasions, and subsequent conquests of the Central Asian Emirate of Bukhara by the Russian Empire.

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

Uzbekistan

Battle of Sauce (Entre Ríos)

Battle of Sauce (Combate del Sauce) was a battle between the troops of the Argentine National government, and the Federal rebels commanded by Ricardo López Jordán. It took place on May 20, 1870, in the Arroyo del Sauce, Entre Ríos.

Levi Strauss and Jacob Davis receive a U.S. patent for blue jeans with copper rivets

Levi Strauss ( LEE-vy STROWSS; born Löb Strauß, German: [løːp ˈʃtʁaʊs]; February 26, 1829 – September 26, 1902) was a German-born American businessman who founded the first company to manufacture blue jeans. His firm of Levi Strauss & Co. (Levi's) began in 1853 in San Francisco, California.

Metre Convention

Metre Convention (French: Convention du Mètre), also known as the Treaty of the Metre, is an international treaty that was signed in Paris on 20 May 1875 by representatives of 17 nations. The treaty set up an institute for the purpose of coordinating international metrology and for coordinating the development of the metric system. The treaty also set up associated organizations to oversee the running of the institute.

Paris, France

Kumanovo uprising

The Kumanovo uprising was an uprising organized by an assembly of chiefs of the districts (Ottoman kaza) of Kumanovo, Kriva Palanka, and Kratovo in the Vilayet of Kosovo (in modern-day North Macedonia) in 1878. The movement sought to liberate the region from the hands of the Ottoman Empire. Following the Serbian Army's liberation of Niš on 12 January 1877, the rebellion began on 20 January 1878 with guerrilla operations during the army's liberation of Vranje.

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

North Macedonia

Çırağan incident

The Çırağan incident, also known as the Ali Suavi incident (Ottoman Turkish: واقعه چراغان, romanized: Vak'â-yı Çırağan), was a failed coup attempt that took place on May 20, 1878 by a group of dissident people led by Ali Suavi to replace Ottoman sultan Abdul Hamid II with his brother Murad V who was held in Çırağan Palace.

The Triple Alliance between the German Empire, Austria-Hungary and the Kingdom of Italy is formed

The Triple Alliance was a defensive military alliance between Germany, Austria-Hungary, and Italy. It was formed on 20 May 1882 and renewed periodically until it expired in 1915 during World War I. Germany and Austria-Hungary had been closely allied since 1879. Italy was looking for support against France shortly after it lost North African ambitions to the French.

1883 eruption of Krakatoa

Between 19 May and 21 October 1883, the volcanic island of Krakatoa (located in the Sunda Strait, then part of the Dutch East Indies—modern-day Indonesia) began erupting, lasting more than five months. On 27 August, the island had its most significant eruption, which destroyed over 70% of the island and its surrounding archipelago, the island collapsing into a caldera.

Oamaru by-election, 1885

The Oamaru by-election 1885 was a by-election held in the Oamaru electorate during the 9th New Zealand Parliament, on 20 May 1885. The by-election was caused by the resignation of the incumbent, Samuel Shrimski, who was appointed to the Legislative Council, and was won by Thomas William Hislop.

New Zealand

Greco-Turkish War (1897)

The Greco-Turkish War of 1897 or the Ottoman-Greek War of 1897 was fought between the Kingdom of Greece and the Ottoman Empire. Its immediate cause involved the status of the Ottoman province of Crete, whose Greek-majority population had long desired union with Greece.

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

1896–1897 Macedonian rebellion

The 1896–1897 Macedonian Rebellion (Greek: Μακεδονική επανάσταση του 1896–1897) was a Greek rebellion, launched in 1896, and a guerrilla movement that took place in Macedonia in order to preserve the conscience and ready-mindedness of the Macedonian Greek populations, to create a rivalrous awe against the Bulgarians the demarcation of the Greek territorial claims in the Ottoman area and the creation of a distraction for the events of Crete.

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

With the end of U.S. military government jurisdiction, Cuba gained formal independence on 20 May 1902 as the Republic of Cuba

Cuba, officially the Republic of Cuba, is an island country in the Caribbean. It comprises the eponymous main island as well as 4,195 islands, islets, and cays. Situated at the convergence of the Caribbean Sea, Gulf of Mexico, and Atlantic Ocean, Cuba is located east of the Yucatán Peninsula, south of both Florida and the Bahamas, west of Hispaniola, and north of Jamaica and the Cayman Islands.

1906 French legislative election

Legislative elections were held in France on 6 and 20 May 1906. The elections produced an increased majority for the governing coalition between the Radicals (PRRRS) and the left Republicans (ARD), which had held power under the premierships of Maurice Rouvier and Ferdinand Sarrien since January 1905. Sarrien resigned on 20 October for reasons of health.

France

War of 1912

The War of 1912 (Spanish: Levantamiento Armado de los Independientes de Color, lit. 'Armed Uprising of the Independents of Color'), also known as the Little Race War or The Twelve, was a series of protests and uprisings in 1912 in Cuba. The conflict was between Afro-Cuban rebels and the armed forces of Cuba, taking place mainly in the eastern region of the island where most Afro-Cubans lived and worked.

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

Cuba

1914 North East Derbyshire by-election

The 1914 North East Derbyshire by-election was a Parliamentary by-election held on 20 May 1914. 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. About a third of the electorate were directly involved in the mining industry. This was the penultimate by-election to take place before the outbreak of the First World War.

United Kingdom

Battle of Pakosław

The Battle of Pakoslaw took place in the night of May 19–20, 1915, near the village of Pakoslaw, Congress Poland. It was the first battle of the so-called Pulawy Legion, a Polish military formation of World War I, which was part of the Imperial Russian Army. Soldiers of the Legion clashed with the German Empire armed forces, during Russian retreat of 1915 (see also Great Retreat).

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

Treaty of Jeddah (1927)

The 1927 Treaty of Jeddah, formally the Treaty between His Majesty and His Majesty the King of the Hejaz and of Nejd and Its Dependencies was signed between the United Kingdom and Ibn Saud. It was signed by Sir Gilbert Clayton on behalf of the United Kingdom and Prince Faisal bin Abdulaziz on behalf of Kingdom of Hejaz and Nejd on 20 May 1927.

German federal election, 1928

Federal elections were held in Germany on 20 May 1928. The Social Democratic Party (SPD) remained the largest party in the Reichstag after winning 153 of the 491 seats. Voter turnout was 75.6%. The only two parties to gain significantly were the SPD, who polled almost a third of votes, and the Communist Party of Germany, completing a thorough victory of the left-wing. However, although the SPD now had 153 seats, they still failed to gain a clear majority, resulting in another coalition government led by Hermann Müller.

Germany

1932 Democratic Party presidential primaries

From March 8 to May 20, 1932, voters and members of the Democratic Party elected delegates to the 1932 Democratic National Convention for the purpose of nominating a candidate for president in the 1932 United States presidential election. New York Governor Franklin D. Roosevelt was selected as the nominee through a series of primary elections and caucuses culminating in the 1932 Democratic National Convention held from June 27 to July 2, 1932, in Chicago, Illinois.

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

United States

1932 Republican Party presidential primaries

From March 8 to May 20, 1932, voters of the Republican Party elected delegates to the 1932 Republican National Convention, in part to choose the party nominee for president in the 1932 United States presidential election. Incumbent president Herbert Hoover faced only nominal opposition for the nomination but refrained from participating in the primaries, choosing instead to focus on his ongoing efforts to end the Great Depression.

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

United States

1939 Griffith by-election

A by-election was held for the Australian House of Representatives seat of Griffith on 20 May 1939. This was triggered by the death of Labor Party MP Frank Baker. The election was won by Labor candidate William Conelan by eight votes. Immediately after Baker's death, there was some speculation that Queensland premier, William Forgan Smith would contest the by-election.

Battle of Crete

The Battle of Crete (German: Luftlandeschlacht um Kreta, Greek: Μάχη της Κρήτης, also Unternehmen Merkur, Operation Mercury) was fought during World War II on the Greek island of Crete. It began on the morning of 20 May 1941, when Nazi Germany began an airborne invasion of Crete. Greek forces and other Allied forces, along with Cretan civilians, defended the island. After one day of fighting, the Germans had suffered heavy casualties and the Allied troops were confident that they would defeat the invasion.

Greece

Demyansk Pocket

The Demyansk Pocket (German: Kessel von Demjansk; Russian: Демя́нский котёл) was the name given to the pocket of German troops encircled by the Red Army around Demyansk, south of Leningrad, on World War II's Eastern Front. The pocket existed mainly from 8 February to 21 April 1942. A much smaller force was surrounded in the Kholm Pocket at the town of Kholm, about 100 km (62 mi) to the southwest.

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

Convoy SC 130

Convoy SC 130 was a North Atlantic convoy which ran during the battle of the Atlantic in World War II. It was the 130th of the numbered series of slow convoys of merchant ships from Sydney, Cape Breton Island to Liverpool. SC 130 was one of several convoy battles that occurred during the crisis month of May 1943.

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

The Luttra Woman (skull pictured), a bog body from the Early Neolithic period, was discovered near Luttra, Sweden

The Luttra Woman is a skeletonised bog body discovered in a peat bog in Falbygden near Luttra, Sweden. The remains were found on 20 May 1943 by a peat cutter. The skull was well-preserved, but some bones of the skeleton, particularly many between the skull and the pelvis, were missing. Osteological assessment identified the remains as those of a young female.

Enactment of Martial law in Taiwan

Martial law in Taiwan (Chinese: 戒嚴時期; pinyin: Jièyán Shíqí; Pe̍h-ōe-jī: Kài-giâm sî-kî) refers to the periods in the history of Taiwan after World War II, during control by the Republic of China Armed Forces of the Kuomintang-led regime. The term is specifically used to refer to the over 38-year-long consecutive martial law period between 20 May 1949 and 14 July 1987, which was qualified as "the longest imposition of martial law by a regime anywhere in the world" at that time (having since been surpassed by Brunei).

1950–51 DDR-Oberliga championship play-off

The championship play-off of the 1950–51 DDR-Oberliga took place on 20 May 1951 at the Ernst-Thälmann-Stadion in Chemnitz between Chemie Leipzig and Turbine Erfurt. The match decided the winner of the 1950–51 DDR-Oberliga, the 2nd season of the DDR-Oberliga, the top-level football league in East Germany. The match was necessary as both teams finished the season level on points.

Germany

Hong Kong municipal election, 1953

The 1953 Urban Council Election was held on 20 May 1953 for the 4 elected seats of the Urban Council of Hong Kong. The elected seats extended from 2 seats to 4 seats in this election, which increased the total numbers of member from 13 to 15. For the first time the polling station was set in the Kowloon peninsula, at the Kowloon-Canton Railway Station in Tsim Sha Tsui, besides the one in Hong Kong Island. 2,536 of about 8,000 eligible voters cast ballots. All candidates elected were from the Reform Club, including Brook Bernacchi and Woo Pak-chuen.

Hong Kong

South Korean legislative election, 1954

Parliamentary elections were held in South Korea on 20 May 1954. The result was a victory for Syngman Rhee's Liberal Party, which won 114 of the 203 seats. Voter turnout was 91.1%.

South Korea

Battle of Sidi Semiane

The Battle of Sidi Semiane was a four-hour combat during the Algerian War of Independence which took place on 20 May 1957 in the Dahra mountains in Wilaya IV. The French army launched an attack on the mujahideen of the Algerian National Liberation Front in response to the Algerian victory in the battle of Sidi Mohand Aklouche on 26 April 1957. The battle lasted more than four hours.

Capital Airlines Flight 300

On May 20, 1958, a Vickers Viscount airliner operating Capital Airlines Flight 300 was involved in a mid-air collision with a United States Air Force Lockheed T-33 jet trainer on a proficiency flight in the skies above Brunswick, Maryland. All 11 people on board the Viscount and one of the two crew in the T-33 were killed in the accident.

Maryland, United States

Pakistan International Airlines Flight 705

Pakistan International Airlines Flight 705 (PK705) was a Boeing 720 airliner that crashed while descending to land at Cairo International Airport on 20 May 1965. Of the 127 passengers and crew on board, all but 6 were killed. The crash was the deadliest aviation disaster to occur in Egypt at the time, and is now the third-deadliest. It is also the deadliest aviation disaster involving the Boeing 720.

Cairo, Egypt

Popular Movement of the Revolution

The Popular Movement of the Revolution (French: Mouvement Populaire de la Révolution or MPR) was a Zairian political party established on 20 May 1967 by President Joseph-Désiré Mobutu (later called Mobutu Sese Seko).

Democratic Republic of the Congo

1967 FA Cup final

The 1967 FA Cup final was the 86th final of the FA Cup. It took place on 20 May 1967 at Wembley Stadium and was contested between Tottenham Hotspur and Chelsea. It was the first FA Cup Final to be contested between two teams from London, and is thus often dubbed the "Cockney Cup Final". Tottenham won the match 2–1, their fifth triumph and third of the decade.

Battle of Hamburger Hill

The Battle of Hamburger Hill (13–20 May 1969) was fought by United States Army (US Army) and Army of the Republic of Vietnam (ARVN) forces against People's Army of Vietnam (PAVN) forces during Operation Apache Snow of the Vietnam War. Though the heavily fortified Hill 937, a ridge of the mountain Dong Ap Bia in central Vietnam near its western border with Laos, had little strategic value, US command ordered its capture by a frontal assault, only to abandon it soon thereafter.

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

Chuknagar massacre

Chuknagar massacre (Bengali: চুকনগর গণহত্যা) was a massacre of Bengali Hindus committed by the Pakistan Army and local collaborators during the Bangladesh War of Independence in 1971. The massacre took place on 20 May 1971 at Dumuria in Khulna and it was one of the largest massacres during the war. According to local estimates, between 10,000 and 12,000 people were killed, though the exact number of persons killed in the massacre is not known.

Bangladesh

Accession of Chiang Ching-kuo

Chiang Ching-kuo (, 27 April 1910 – 13 January 1988) was a Chinese and Taiwanese statesman and diplomat. He served as the president of the Republic of China from 1978 until his death in 1988, and acted as a de facto leader of the country by serving as Premier from 1972 to 1978. He was also the chairman of the ruling Kuomintang (KMT) party from 1975.

1978 Mizoram Legislative Assembly election

Elections to the Mizoram Legislative Assembly were held in May 1978 to elect members of the 30 constituencies in Mizoram, India. The Mizoram People's Conference emerged as the single largest party and T. Sailo was appointed as the Chief Minister of Mizoram. The previous ministry, led by Chief Minister C. Chhunga, resigned in May 1977, to facilitate the progress of peace talks (Mizoram Peace Accord).

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

India

Quebec referendum, 1980

The 1980 Quebec referendum was the first referendum in Quebec on the place of Quebec within Canada and whether Quebec should pursue a path toward sovereignty. The referendum was called by Quebec's Parti Québécois (PQ) government, which advocated secession from Canada. The province-wide referendum took place on Tuesday, May 20, 1980, and the proposal to pursue secession was defeated by a 59.56 percent to 40.44 percent margin.

Canada

1980 Portland, Oregon, mayoral elections

Two elections for the position of mayor of Portland, Oregon, were held concurrently on May 20, 1980. There were two ballot items for the same office: a special election to fill the seat for the final weeks of the current term (ending January 3, 1981), and another primary election for a full term (beginning the same day). City commissioner Frank Ivancie defeated acting mayor Connie McCready in both races.

Portland, Oregon, United States

1981 Belfast City Council election

Elections to Belfast City Council were held on 20 May 1981 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. The DUP became the largest party, overtaking the UUP, while Grace Bannister from the UUP became the first female Lord Mayor.

Northern Ireland, United Kingdom

1981 Fermanagh District Council election

Elections to Fermanagh District Council, in Northern Ireland, were held on 20 May 1981, the same day as the other Northern Irish local government elections. The election used five district electoral areas to elect a total of 20 councillors.

Northern Ireland, United Kingdom

1981 Castlereagh Borough Council election

Elections to Castlereagh Borough Council were held on 20 May 1981 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.

1981 Craigavon Borough Council election

Elections to Craigavon Borough Council were held on 20 May 1981 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.

1981 Strabane District Council election

Elections to Strabane District Council were held on 20 May 1981 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.

1981 Antrim Borough Council election

Elections to Antrim Borough Council were held on 20 May 1981 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.

1981 Ballymena Borough Council election

Elections to Ballymena Borough Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 21 councillors.

1981 Moyle District Council election

Elections to Moyle District Council were held on 20 May 1981 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.

1981 Down District Council election

Elections to Down District Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 20 councillors.

1981 North Down Borough Council election

Elections to North Down Borough Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 20 councillors.

1981 Ards Borough Council election

Elections to Ards Borough Council were held on 20 May 1981 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.

1981 Coleraine Borough Council election

Elections to Coleraine Borough Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used three district electoral areas to elect a total of 20 councillors.

1981 Lisburn Borough Council election

Elections to Lisburn Borough Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used five district electoral areas to elect a total of 23 councillors.

1981 Londonderry City Council election

Elections to Londonderry City Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used five district electoral areas to elect a total of 27 councillors.

1981 Dungannon District Council election

Elections to Dungannon District Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 20 councillors.

1981 Banbridge District Council election

Elections to Banbridge District Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used two district electoral areas to elect a total of 15 councillors.

1981 Newry and Mourne District Council election

Elections to Newry and Mourne District Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used six district electoral areas to elect a total of 30 councillors.

1981 Armagh District Council election

Elections to Armagh District Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 20 councillors.

1981 Carrickfergus Borough Council election

Elections to Carrickfergus Borough Council were held on 20 May 1981 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.

1981 Ballymoney Borough Council election

Elections to Ballymoney Borough Council were held on 20 May 1981 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.

1981 Newtownabbey Borough Council election

Elections to Newtownabbey Borough Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 21 councillors.

1981 Magherafelt District Council election

Elections to Magherafelt District Council were held on 20 May 1981 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.

1981 Omagh District Council election

Elections to Omagh District Council were held on 20 May 1981 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 20 councillors.

1981 Cookstown District Council election

Elections to Cookstown District Council were held on 20 May 1981 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.

1981 Larne Borough Council election

Elections to Larne Borough Council were held on 20 May 1981 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.

1981 Limavady District Council election

Elections to Limavady Borough Council were held on 20 May 1981 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.

1981 Northern Ireland local elections

Elections for local government were held in Northern Ireland in 1981, contesting 526 seats in all.

Accession of Edward Youde

Sir Edward Youde (Chinese: 尤德; Cantonese: Yau Tak; 19 June 1924 – 5 December 1986) was a British administrator, diplomat, and Sinologist. He served as Governor of Hong Kong from 20 May 1982 until his death on 5 December 1986.

Church Street, Pretoria bombing

The Church Street bombing was a terrorist car bombing on 20 May 1983 in the South African capital Pretoria by uMkhonto weSizwe (MK), the paramilitary wing of the African National Congress (ANC). The bombing killed 19 people, including the two perpetrators, and wounded 217.

1983 Algerian Cup final

The 1983 Algerian Cup final was the 21st final of the Algerian Cup. The final took place on May 20, 1983, at Stade 5 Juillet 1962 in Algiers with kick-off at 19:00. MP Alger beat ASC Oran 4-3 after extra time to win their fourth Algerian Cup.

Operation Dawn 9

Operation Dawn 9 (Persian: عملیات والفجر 9) was a military operation during the Iran–Iraq War. It was launched on 24 February 1986 on the eastern area of Sulaymaniyah at the front of "northwest", which was performed by the Islamic Revolutionary Guard Corps. The mentioned operation was commenced on 24 o'clock with the code of "Ya Allah" (Persian: یاالله).

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

Iraq

1989 FA Cup final

The 1989 FA Cup final was the final of the 1988–89 FA Cup, the top football knockout competition in England. The match was a Merseyside derby between Liverpool and Everton, played at Wembley Stadium, London, on 20 May 1989. Liverpool won 3–2 after extra time, with a goal from John Aldridge and two from Ian Rush. Stuart McCall scored both Everton goals.

London, United Kingdom

1989 Scottish Cup final

The 1989 Scottish Cup final was played between Celtic and Rangers at Hampden Park on 20 May 1989. Celtic won the match 1–0, denying Rangers a domestic treble. The only goal came when Joe Miller capitalised on a defensive error and slotted the ball past Rangers' goalkeeper. This was the last Old Firm Scottish Cup final for 10 years until 1999.

Romanian general election, 1990

General elections were held in Romania on 20 May 1990. They were the first elections held after the overthrow of the Communist regime six months earlier, and also the first public presidential elections. They were also the first free elections held in the country since 1937. Ion Iliescu was elected President, whilst the National Salvation Front won 263 of the 395 seats in the Chamber of Deputies and 91 of the 118 seats in the Senate.

Romania

1990 Associate Members' Cup final

The 1990 Associate Members' Cup Final, known as the Leyland DAF Cup for sponsorship reasons, was the 7th final of the domestic football cup competition for teams from the Third Division and Fourth Division. The final was played at Wembley Stadium, London on 20 May 1990, and was contested by Tranmere Rovers and Bristol Rovers. Tranmere won the match 2–1, with Ian Muir and Jim Steel scoring the goals for the winning team.

London, United Kingdom

1991 Indian general election in Delhi

The 1991 Indian general election in Delhi was held to elect representatives of the 7 seats of the NCT of Delhi in the Lok Sabha. The Bharatiya Janata Party won 5 of the 7 seats in Delhi, with its opposition, the Indian National Congress winning 2 seats.

India

1992 European Cup final

The 1992 European Cup final was a football match held on 20 May 1992 at Wembley Stadium, London, between Barcelona of Spain and Sampdoria of Italy. Barcelona won the game 1–0 after extra time, thanks to a Ronald Koeman free kick, to record their first triumph in the competition. In 1992, Barcelona hosted the Summer Olympic Games and won the European Champion Clubs' Cup final.

London, United Kingdom

French football bribery scandal

The French football bribery scandal (French: Affaire VA-OM) occurred during a 1992–93 French Division 1 match between Valenciennes and Olympique de Marseille. Marseille president Bernard Tapie and general manager Jean-Pierre Bernès contacted Valenciennes players Jorge Burruchaga, Jacques Glassmann, and Christophe Robert through Marseille player Jean-Jacques Eydelie, who asked them to underperform in the match so that Marseille could stay fresher for their 1993 UEFA Champions League final match against A.C.

France

1995 FA Cup final

The 1995 FA Cup final was a football match played at Wembley Stadium in London on 20 May 1995 to determine the winner of the 1994–95 FA Cup. The 50th FA Cup Final to be played at Wembley since the Second World War, it was contested by Everton and Manchester United. Everton won the match 1–0 via a headed goal by Paul Rideout, after Graham Stuart's shot rebounded off the crossbar.

London, United Kingdom

Civil rights: The Supreme Court of the United States rules in Romer v. Evans against a law that would have prevented any city, town or county in the state of Colorado from taking any legislative, executive, or judicial action to protect the rights of gays and lesbians

The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all U.S. federal court cases, and over state court cases that turn on questions of U.S. constitutional or federal law. It also has original jurisdiction over a narrow range of cases, specifically "all Cases affecting Ambassadors, other public Ministers and Consuls, and those in which a State shall be Party".

1998 UEFA Champions League final

The 1998 UEFA Champions League final was a football match that took place at the Amsterdam Arena in Amsterdam, on 20 May 1998 to determine the winner of the 1997–98 UEFA Champions League. It pitted Real Madrid of Spain and Juventus of Italy. Juventus appeared in their third consecutive final, while Real Madrid were in their first of the Champions League era.

Amsterdam, Netherlands

2000 FA Cup final

The 2000 FA Cup final was the 119th final of the FA Cup, and the 72nd (excluding replays) and last to be played at the old Wembley Stadium. It took place on 20 May 2000 and was contested between Chelsea and Aston Villa, the latter making its first FA Cup Final appearance since winning it in 1957.

Chadian presidential election, 2001

Presidential elections were held in Chad on 20 May 2001. Incumbent President Idriss Déby of the Patriotic Salvation Movement was re-elected with 63% of the vote.

Chad

Mongolian presidential election, 2001

Presidential elections were held in Mongolia on 20 May 2001. The result was a victory for incumbent Natsagiin Bagabandi, who won 59.2% of the vote. Voter turnout was 82.9%.

Mongolia

WWF Judgment Day (2001)

The 2001 Judgment Day was a professional wrestling pay-per-view (PPV) event produced by the World Wrestling Federation (WWF, now WWE) and sponsored by RC Cola. It was the third Judgment Day and took place on May 20, 2001, at the ARCO Arena in Sacramento, California. This was the last Judgment Day held before the introduction of the brand extension in March 2002.

California, United States

2004 Danish Cup final

The 2004 Danish Cup final was the final and deciding match of the 2003–04 Danish Cup. It took place on Thursday 20 May 2004 at Parken Stadium in Copenhagen and saw the Superliga leaders F.C. Copenhagen beat no. 5 in the league Aalborg Boldspilklub (AaB). F.C. Copenhagen have won the Cup on two previous occasions (1995 and 1997). AaB have won the Cup in 1966 and 1970.

Denmark

Sarawak state election, 2006

The ninth Sarawak state election was held on Saturday, 20 May 2006 with nomination day on Tuesday, 9 May 2006. The election functioned to elect 71 representatives to the Sarawak State Assembly (Dewan Undangan Negeri in Malay). The eighth state assembly was dissolved by Yang di-Pertua Negeri Sarawak, Tun Abang Muhammad Salahuddin Abang Barieng by the advice of Chief Minister Abdul Taib Mahmud, on 24 April 2006. On nomination day, Barisan Nasional won two seats without contest. This election saw 892,537 voters eligible to cast their ballots. The previous state election was held in 2001, when the ruling Barisan Nasional (BN) won 60 out of 62 seats in the eighth state assembly.

Sarawak, Malaysia

2006 Heineken Cup final

The 2006 Heineken Cup Final was a rugby union match played at the Millennium Stadium in Cardiff, Wales, on 20 May 2006, to determine the winners of the 2005–06 Heineken Cup, European rugby's premier club competition. The match was contested by Irish province Munster and French side Biarritz.

Wales, United Kingdom

2006 Conference National play-off final

The 2005–06 Conference National play-off final took place on 20 May 2006 and was contested between Halifax Town and Hereford United. It was held at the Walkers Stadium Leicester for the first time, the previous play-off finals having been held at the Britannia Stadium, Stoke. The result promoted Hereford to League Two while Halifax had to remain in the conference.

2006 New Orleans mayoral election

The first round of the New Orleans mayoral election of 2006 took place on April 22, 2006; a runoff between incumbent Mayor Ray Nagin and Louisiana Lieutenant Governor Mitch Landrieu took place on May 20, resulting in reelection for Mayor Nagin. The Mayor of New Orleans is the top official in New Orleans' mayor-council system of government.

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

The main structure of the Three Gorges Dam is completed

The main structure of China's Three Gorges Dam was completed at Sandouping on the Yangtze River. The concrete dam reached its designed height of 185 metres. This was a construction milestone in the wider hydropower project; power-generation and navigation work continued afterward.

This entry records completion of the main dam structure, rather than completion of every component of the wider project.

China

Judgment Day (2007)

Judgment Day (2007) was the ninth annual Judgment Day professional wrestling pay-per-view event produced by World Wrestling Entertainment (WWE). It took place on May 20, 2007 from the Scottrade Center in St. Louis, Missouri. This was the first Judgment Day event since 2003 to be an inter-brand pay-per-view, as it featured talent from the Raw, SmackDown!, and ECW brands. The main match on the Raw brand was John Cena versus The Great Khali for the WWE Championship, which Cena won after forcing Khali to submit to the STFU. The featured match on the SmackDown!

St. Louis, United States

Vietnamese legislative election, 2007

Parliamentary elections were held in Vietnam on 20 May 2007.

Vietnam

2007 Heineken Cup final

The 2007 Heineken Cup Final was a rugby union match played at Twickenham Stadium in London, England, on 20 May 2007 to determine the winners of the 2006–07 Heineken Cup, European rugby's premier club competition. It was contested by English clubs Leicester Tigers and London Wasps. It was the 12th Heineken Cup final overall, and the third to be contested by two teams from the same nation, after the finals of 2003 and 2005, both of which were all-French affairs.

England, United Kingdom · London, United Kingdom

2007 Conference National play-off final

The 2006–07 Conference National play-off final took place on 20 May 2007 between Morecambe and Exeter City. It was the fifth Conference National play-off final and the first to be played at Wembley Stadium. The attendance of 40,031 was the largest for a Conference National final at that time, with 30,000 of them supporting Exeter City.

Dynamite Duumvirate Tag Team Title Tournament (2007)

Dynamite Duumvirate Tag Team Title Tournament (2007) was the first Dynamite Duumvirate Tag Team Title Tournament (DDT4) produced by Pro Wrestling Guerrilla (PWG). It was a two-night event, taking place on May 19 and May 20, 2007 at the Burbank Armory in Burbank, California. It was an eight-team tournament contested for the vacant PWG World Tag Team Championship.

2007 Volgograd mayoral election

Volgograd, Russia, held a mayoral election on May 20, 2007. Roman Grebennikov of the Communist Party of the Russian Federation won the election.

2008 Kentucky Democratic presidential primary

The 2008 Kentucky Democratic presidential primary took place May 20, 2008, and had 51 delegates at stake. The winner in each of Kentucky's six congressional districts was awarded all of that district's delegates, totaling 34. Another 17 delegates were awarded to the statewide winner, Hillary Clinton. The 51 delegates represented Kentucky at the Democratic National Convention in Denver, Colorado.

Kentucky, United States

2008 Portland, Oregon, mayoral election

On May 20, 2008, an election was held in Portland, Oregon, to elect the mayor. Sam Adams was elected, defeating challenger Sho Dozono. Incumbent mayor Tom Potter did not seek a second term. 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.

Portland, Oregon, United States · Oregon, United States

2008 Kentucky Republican presidential primary

The 2008 Kentucky Republican presidential primary took place on May 20, 2008. The only Republican candidates that were still in the race were Senator John McCain and Congressman Ron Paul. McCain was the presumptive Republican nominee, having already won enough delegates to secure his eventual nomination. McCain won the primary.

Kentucky, United States

2008 Portland, Oregon, City Commission election

The 2008 Portland City Commission elections were held on May 20, 2008, and November 4, 2008, to elect three positions on the Portland, Oregon City Council. Two positions, 1 and 4, held regularly scheduled elections while position 2 held a special election to fill the remainder of Erik Sten's term after his retirement on April 4.

2008 Mesa mayoral election

The 2008 Mesa mayoral election was held on May 20, 2008, to elect the mayor of Mesa, Arizona. It saw the election of Scott Smith. Incumbent mayor Keno Hawker was term limited.

2008 Oregon Democratic presidential primary

The 2008 Oregon Democratic presidential primary was a mail-only primary in the U.S. state of Oregon. Ballots were mailed to registered Democratic voters between May 2 and May 6, 2008. To be counted, all ballots had to have been received by county elections offices by 8:00 p.m. PDT on May 20, 2008.

United States

Accession of Ma Ying-jeou

Ma Ying-jeou (Chinese: 馬英九; pinyin: Mǎ Yīngjiǔ; Ma-ING-gee-oh; born 13 July 1950) is a Taiwanese politician, lawyer, and legal scholar who served as the sixth president of the Republic of China from 2008 to 2016. A member of the Kuomintang (KMT), he was previously the mayor of Taipei from 1998 to 2006 and the chairman of the Kuomintang for two terms (2005–2007; 2009–2014).

2009 Indonesian Air Force L-100 crash

On 20 May 2009, an Indonesian Air Force Lockheed L-100-30(P) Hercules carrying 112 people (98 passengers and 14 crew) crashed at about 6:30 local time (23:30 UTC), while flying from Jakarta to eastern Java. The crash resulted in 99 deaths, 2 of which occurred on impact when the aircraft struck at least four houses before skidding into a rice paddy in the village of Geplak. and at least 70 others were taken to a local hospital.

2009 Indonesia Super League U-21 Final

The 2008–09 Indonesia Super League U-21 Final was a football match which was played on 20 May 2009. It was the 1st final of the Indonesia Super League U-21. The match was played at the Jalak Harupat Stadium in Soreang, Bandung Regency and was contested by Persita U-21 of Tangerang and Pelita Jaya U-21 from Karawang. Pelita U-21 and Persita U-21 was a debutant of the final stage.

2009 UEFA Cup final

The 2009 UEFA Cup Final was the final match of the 2008–09 UEFA Cup, the 38th season of the UEFA Cup, UEFA's second-tier club football tournament. It was also the last final to be held under the UEFA Cup name, as the competition was rebranded as the UEFA Europa League from the 2009–10 season. The final was contested by Shakhtar Donetsk and Werder Bremen, with Shakhtar winning the match 2–1 after extra time. All three goalscorers in the game were Brazilians; lone striker Luiz Adriano opened the scoring for Shakhtar midway through the first half, before Naldo equalised from a free kick ten minutes later. The second half was goalless and the match went to extra time; after only seven minutes, Jádson scored for Shakhtar to secure the club's first major European trophy. The match was played at the Şükrü Saracoğlu Stadium – home ground of Fenerbahçe – in Istanbul, Turkey, on 20 May 2009.

2009 Slovak Cup final

The 2009 Slovak Cup final was the final match of the 2009–10 Slovak Cup, the 40th season of the top cup competition in Slovak football. The match was played at the NTC Senec in Senec on 20 May 2009 between MFK Košice and FC Artmedia Petržalka. MFK Košice defeated Artmedia 3-1.

May–June 2009 Moldovan presidential election

An indirect presidential election was held in Moldova following the April 2009 parliamentary election.

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

Moldova

2010 UEFA Women's Champions League final

The 2010 UEFA Women's Champions League Final was held at Coliseum Alfonso Pérez in Getafe, Spain, on 20 May 2010. It was the first final of the competition after the rebranding from Women's Cup to the Champions League. The final saw Turbine Potsdam beat Lyon 7–6 on penalties after a 0-0 draw after extra time.

Spain

Dominican Republic presidential election, 2012

Presidential elections were held in the Dominican Republic on 20 May 2012. They were the fifth quadrennial elections for the presidency and vice-presidency since 1998, when a change in the electoral law separated the presidential from the congressional and municipal elections. As specified in the new constitution ratified in January 2010, the presidential elections of 2012 coincided with the election of Overseas Deputies in Dominican expatriate communities. Since 1974, elections in the Dominican Republic took place on 16 May every four years. Nevertheless, the constitutional reform of 2009 stipulated in article 209 that the elections would be held on 20 May 2012 to avoid their falling on a work day.

Dominican Republic

Over the Limit (2012)

Over the Limit was a professional wrestling pay-per-view (PPV) event produced by WWE. It took place at the PNC Arena in Raleigh, North Carolina on May 20, 2012. It was the third and final event under the Over the Limit chronology. Ten professional wrestling matches took place at the event, nine of which were broadcast live on pay-per-view. In the main event, John Laurinaitis defeated John Cena. Also featured was CM Punk defeating Daniel Bryan to retain the WWE Championship, and Sheamus defeating Alberto Del Rio, Randy Orton, and Chris Jericho to retain the World Heavyweight Championship.

Raleigh, North Carolina, United States

2012 Conference Premier play-off final

The 2012 Conference Premier play-off final, known as the 2012 Blue Square Bet Premier play-off final for sponsorship purposes, was a football match between Luton Town and York City on 20 May 2012 at Wembley Stadium in London. It was the tenth Conference Premier play-off final and the first to be played at Wembley since 2010.

London, United Kingdom

2012 Coppa Italia final

The 2012 Coppa Italia final was the final match of the 2011–12 Coppa Italia, the top cup competition in Italian football. The match was played at the Stadio Olimpico in Rome on Sunday, 20 May 2012 between Juventus and Napoli. Napoli won the match 2–0, with Edinson Cavani and Marek Hamšík scoring. The cup victory was Napoli's fourth in the competition.

2012 Taça de Portugal final

The 2012 Taça de Portugal final was the final match of the 2011–12 Taça de Portugal, the 72nd season of the Taça de Portugal, which is the main Portuguese football knockout competition organised by the Portuguese Football Federation (FPF). The final was played at the Estádio Nacional, Oeiras, on the 20 May 2012. The final was contested between two Primeira Liga teams, Académica and Sporting CP.

2012 Netball Superleague Grand Final

The 2012 Netball Superleague Grand Final featured Northern Thunder and Surrey Storm. It was the first grand final not to feature either Team Bath or Mavericks. Northern Thunder won their first Superleague title.

2012 Serbian presidential election

Presidential elections were held in Serbia on 6 May 2012 alongside parliamentary elections. The elections were called following President Boris Tadić's early resignation in order to coincide with the parliamentary and local elections to be held on the same date. The Speaker of the Parliament, Slavica Đukić Dejanović, took over as the Acting President.

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

Serbia

2013 Moore tornado

The 2013 Moore tornado was a large and extremely violent EF5 tornado that ravaged Moore, Oklahoma, and adjacent areas on the afternoon of May 20, 2013, with peak winds estimated at 200–210 mph (320–340 km/h), killing 24 people (plus two indirect fatalities) and injuring 212 others.

Malawian general election, 2014

General elections were held in Malawi on 20 May 2014. They were Malawi's first tripartite elections, making it the first time the people of Malawi voted for their local governments, members of parliament and president in a single election. The presidential election was won by opposition candidate Peter Mutharika of the Democratic Progressive Party, who defeated incumbent President Joyce Banda.

Malawi

2014 Philadelphia City Council special election

The 2014 Philadelphia City Council special election took place on May 20, 2014, alongside the primary election. The composition of the Philadelphia City Council remained unchanged from before the election, with Democrats maintaining their 14–3 majority on the council.

Philadelphia, United States

2014 Oregon Commissioner of Labor election

The 2014 Oregon Commissioner of Labor and Industries election was held on May 20, 2014, in order to elect the Oregon Commissioner of Labor and Industries. The election was held on a nonpartisan basis. Incumbent Commissioner Brad Avakian was re-elected unopposed in the May primary. Because he received over 50% of the vote, the general election scheduled for November was not held.

Oregon, United States

2014 Portland, Oregon, City Commission election

The 2014 Portland City Commission elections were held on May 20, 2014. Both candidates won the election with over 50% of the vote avoiding a general election runoff. 2 positions were up for election, Position 2 and Position 3.

NXT TakeOver: Unstoppable

NXT TakeOver: Unstoppable was a 2015 professional wrestling livestreaming event produced by WWE, held exclusively for wrestlers from the promotion's developmental territory, NXT. It was the fifth NXT TakeOver event and took place on Saturday, May 20, 2015, at NXT's home venue at the time, Full Sail University in Winter Park, Florida. The event aired exclusively on the WWE Network.

Florida, United States

2015 Israel State Cup final

The 2015 Israel State Cup final decided the winner of the 2014–15 Israel State Cup, the 80th season of Israel's main football cup. It was played 20 May 2015 at the Sammy Ofer Stadium in Haifa, between Maccabi Tel Aviv and Hapoel Be'er Sheva.

Haifa, Israel

2015 Croatian Football Cup final

The 2015 Croatian Cup final was a one-legged affair played between Dinamo Zagreb and RNK Split. The final was played in Zagreb on 20 May 2015. Dinamo Zagreb won the trophy after the penalty shoot-out. For the first time the final was played as a single game.

Zagreb, Croatia

2015 Slovenian Football Cup final

The 2015 Slovenian Football Cup final was the final match of the 2014–15 Slovenian Football Cup to decide the winner of the 24th edition of the Slovenian Football Cup, Slovenia's top knockout tournament. The match was played at Bonifika Stadium in Koper on 20 May 2015 and was won by Koper, who defeated Celje with the score 2–0. This was the third cup title for Koper.

2015 Coppa Italia final

The 2015 Coppa Italia final decided the winner of the 2014–15 Coppa Italia, Italy's main football cup. It was played on 20 May 2015 at the Stadio Olimpico in Rome, between Juventus and Lazio. Juventus won 2–1 after extra time for a record tenth title. As Juventus won the 2014–15 Serie A, Lazio qualified automatically as the cup representative in the 2015 Supercoppa Italiana.

2015 Magyar Kupa final

The Magyar Kupa final was the final match of the 2014–15 Magyar Kupa, played between Videoton and Ferencváros.

Hungary

2015 Cupa Ligii final

The Cupa Ligii final was the final match of the 2014–15 Cupa Ligii, played between Steaua București and Pandurii Târgu Jiu. Steaua București won the match with 3–0.

Battle of Ferkouia (2015)

The Battle of Ferkouia took place on May 19 and 20, 2015, during an offensive by the Algerian army against jihadists.

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

Algeria

2016 Taça da Liga final

The 2016 Taça da Liga final was the final match of the 2015–16 Taça da Liga, the ninth season of the Taça da Liga. Trophy holders Benfica beat Marítimo 6–2 (for the second consecutive final) to win a third consecutive and record seventh title in the competition, in a total of nine editions.

2016 Labour Party leadership election (Ireland)

The 2016 Labour Party leadership election was a leadership election within Ireland's Labour Party that was triggered when Joan Burton announced her intention to relinquish the role of leader. Burton decided to step down as Labour leader on 10 May 2016, and in the aftermath of the party's poor showing at the 2016 general election. In contention for the position were Brendan Howlin, Seán Sherlock and Alan Kelly.

2017 EFL League One play-off final

The 2017 EFL League One play-off final was an association football match which was played on 20 May 2017 at Wembley Stadium, London, between Bradford City and Millwall to determine the third and final team to gain promotion from EFL League One to the EFL Championship.

London, United Kingdom

NXT TakeOver: Chicago

NXT TakeOver: Chicago was a 2017 professional wrestling livestreaming event produced by WWE, held exclusively for wrestlers from the promotion's developmental brand, NXT. It was the 15th NXT TakeOver event and the inaugural TakeOver: Chicago. It took place on Saturday, May 20, 2017, at the Allstate Arena in the Chicago suburb of Rosemont, Illinois as part of that year's Backlash weekend and aired exclusively on the WWE Network.

Illinois, United States · Chicago, United States

3rd Peoples' Democratic Party Extraordinary Congress

The 3rd Peoples' Democratic Party Extraordinary Congress was held on 20 May 2017 to elect a new female co-leader for the Turkish Peoples' Democratic Party (HDP). The party's previous chairwoman, Figen Yüksekdağ, had been imprisoned in November 2016 for inciting violence and distributing terrorist propaganda and had her party membership revoked on 9 March 2017. On 6 May 2017, the HDP Central Executive Committee met to appoint a new acting leader.

Turkey

2017 Kuomintang chairmanship election

The 2017 Kuomintang chairmanship election (Chinese: 2017年中國國民黨主席選舉) was held on 20 May 2017. This was the eighth direct election of the party leader in Kuomintang history. All registered, due-paying KMT party members were eligible to vote.

2017 Cupa Ligii final

The 2017 Cupa Ligii final was the final match of the 2016–17 Cupa Ligii, played between Dinamo București and Poli Timișoara. Dinamo București won the match with 2–0.

2017 Malaysia FA Cup final

The 2017 Malaysia FA Cup final was the 28th final of the Malaysia FA Cup, the Malaysia football cup competition. Kedah won the cup after defeating Pahang 3–2 and were assured a place for the 2018 AFC Cup group stage.

2018 Venezuelan presidential election

Presidential elections were held in Venezuela on 20 May 2018, with incumbent Nicolás Maduro being declared reelected for a second six-year term. The original electoral date was scheduled for December 2018 but was subsequently pulled ahead to 22 April before being pushed back to 20 May. Some analysts described the poll as a sham election, as many prominent opposition parties had been barred from participating in it.

Venezuela

Rey del Ring (2018)

The Rey del Ring (2018) show (Spanish for "King of the Ring") was a major annual lucha libre event produced and scripted by Mexican professional wrestling promotion International Wrestling Revolution Group (IWRG), and took place on May 20, 2018 in Arena Naucalpan, Naucalpan, State of Mexico, Mexico. The main event was the Eponymous IWRG Rey del Ring tournament, the sixteenth annual version of the tournament, IWRG's version of WWE's Royal Rumble, multi-man elimination event.

Naucalpan, Mexico

2018 FA Trophy final

The 2018 FA Trophy Final was a football match between Brackley Town and Bromley on 20 May 2018. It was the final match of the 2017–18 FA Trophy, the 49th season of the FA Trophy. Both teams were making their first appearances in the final.

2018 Taça de Portugal final

The 2018 Taça de Portugal final was the last match of the 2017–18 Taça de Portugal, which decided the winner of the 78th season of the Taça de Portugal. It was played on 20 May 2018 at the Estádio Nacional in Oeiras, between Desportivo das Aves and Sporting CP. This was the first appearance for Desportivo das Aves in a Taça de Portugal final.

2018 FA Vase final

The 2018 FA Vase final was the 44th 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 Stockton Town, of the Northern League Division One, and Thatcham Town, of the Hellenic League Premier Division. This was the first time both teams had reached the final and the first visit to Wembley Stadium for both sides.

United Kingdom

2020 Burundian general election

General elections were held in Burundi on 20 May 2020 to elect both the president and the National Assembly. Évariste Ndayishimiye of the ruling CNDD–FDD was elected president with 71% of the vote. In the National Assembly elections, the CNDD–FDD won 72 of the 100 elected seats.

Burundi

2022 CAF Confederation Cup final

The 2022 CAF Confederation Cup final was the final match of the 2021–22 CAF Confederation Cup, the 19th season of Africa's premier club football tournament organised by CAF under the current CAF Confederation Cup title after the merger of CAF Cup and African Cup Winners' Cup. It was played at the Godswill Akpabio International Stadium in Uyo, Nigeria on 20 May 2022.

Nigeria

Russo-Ukrainian war: Russia claims full control of the Ukrainian city of Mariupol after a nearly three-month siege

The Russo-Ukrainian war began in February 2014 and is ongoing. Following Ukraine's Revolution of Dignity, Russia occupied Crimea and annexed it from Ukraine. It then supported Russian separatist armed groups who started a war in the eastern Donbas region against Ukraine's military. In 2018, Ukraine declared the region to be occupied by Russia. The first eight years of conflict also involved naval incidents and cyberwarfare.

ONE 157

ONE 157: Petchmorakot vs. Vienot was a combat sport event produced by ONE Championship that took place on May 20, 2022, at the Singapore Indoor Stadium in Kallang, Singapore.

Russo-Ukrainian war: Russia claimed full control of Mariupol after a nearly three-month siege

The siege of Mariupol began on 24 February 2022, as part of the Russian invasion of Ukraine, and lasted until 20 May. It saw fighting between the Russian Armed Forces (alongside the Donetsk People's Republic People's Militia) and the Ukrainian Armed Forces for control over the city of Mariupol in southeastern Ukraine.

UFC Fight Night: Dern vs. Hill

UFC Fight Night: Dern vs. Hill (also known as UFC Fight Night 223, UFC Vegas 73, and UFC on ESPN+ 81) was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on May 20, 2023, at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States.

Nevada, United States

2023 Thai League Cup final

The 2023 Thai League Cup final was the final match of the 2022–23 Thai League Cup, the 13th season in the second era of a Thailand's football tournament organized by Football Association of Thailand. It was played at the Thunderdome Stadium in Nonthaburi, Thailand on 20 May 2023, between Buriram United a big team from Buriram that located in the Northeastern part and BG Pathum United a big team from Pathum Thani that located in the Bangkok Metropolitan Region of Thailand.

Bangkok, Thailand

2022 Norwegian Football Cup final

The 2022 Norwegian Football Cup final was the final match of the 2022 Norwegian Football Cup, the 116th season of the Norwegian Football Cup, the premier Norwegian football cup competition organized by the Football Association of Norway (NFF). The match was played on 20 May 2023 at the Ullevaal Stadion in Oslo, between Eliteserien teams Brann and Lillestrøm.

2023 European Rugby Champions Cup final

The 2023 European Rugby Champions Cup Final was the final match of the 2022–23 European Rugby Champions Cup, and the twenty-eighth European club rugby final in general. The final was contested by Leinster and La Rochelle, and a repeat of the 2022 Final which La Rochelle won 24–21. The Aviva Stadium was the host venue of the final, just the second time it has hosted the game having also been the venue in 2013.

Ireland

2024 Indian general election in Ladakh

The 2024 Indian general election was held in Ladakh on 20 May 2024 to elect 1 member of the 18th Lok Sabha. These elections are the first elections to be held in Ladakh after the separating of the territory from Jammu and Kashmir under the Jammu and Kashmir Reorganisation Act, 2019 and granting it a separate Union territory status.

India

2025 New York Senate District 22 special election

A special election in the U.S. state of New York was held on May 20, 2025, to elect a new member for the 22nd district in the New York Senate, representing a portion of Kings County, which is coextensive with the borough of Brooklyn. The election filled a vacancy caused by the resignation of Democratic state senator Simcha Felder upon his election to the New York City Council.

New York, United States

NASCAR Hall of Fame Class of 2026 ballot

Three new members were voted in to the NASCAR Hall of Fame on May 20, 2025, from a list of nominees provided by NASCAR. The nominees are split into two categories, the Modern Era, and the Pioneer Era. The final decision was made by the NASCAR Hall of Fame voting panel, who will also decide the winner of the Landmark Award.

2026 UEFA Europa League final

The 2026 UEFA Europa League final was the final match of the 2025–26 UEFA Europa League, the 55th season of Europe's secondary club football tournament organised by UEFA, and the 17th season since it was renamed from the UEFA Cup to the UEFA Europa League. It was played at Beşiktaş Stadium in Istanbul, Turkey, on 20 May 2026 between German club SC Freiburg and English club Aston Villa.

Turkey