Constantine the Great is said to have received his famous Vision of the Cross.

Constantine the GreatVision of Constantine

Saracen invasion of Sardinia.

SaracenSardinia

Æthelstan, the first King of England, died and was succeeded by his half-brother, Edmund I.

ÆthelstanKing of EnglandEdmund I

Traditional founding of the city of Amsterdam.

Amsterdam

Italian Wars: French troops lay siege to Pavia.

Italian WarsPavia

Condemned as a heretic, Michael Servetus is burned at the stake just outside Geneva.

HeresyMichael ServetusBurned at the stakeGeneva

Second Battle of Newbury in the English Civil War.

Second Battle of NewburyEnglish Civil War

Philadelphia is established in the Colonial American Commonwealth of Pennsylvania.

PhiladelphiaColonial AmericaCommonwealth of Pennsylvania

The United States and Spain sign the Treaty of Madrid, which establishes the boundaries between Spanish colonies and the U.S.

Treaty of Madrid (1795)Spanish colonization of the Americas

The French Army enters Berlin, following the Battle of Jena-Auerstedt.

Battle of Jena-Auerstedt

United States annexes the former Spanish colony of West Florida.

Spanish colonization of the AmericasWest Florida

Missouri governor Lilburn Boggs issues the Extermination Order, which orders all Mormons to leave the state or be exterminated.

MissouriLilburn BoggsExtermination Order (Mormonism)Mormons

Marshal François Achille Bazaine surrenders to Prussian forces at the conclusion of the Siege of Metz along with 140,000 French soldiers in one of the biggest French defeats of the Franco-Prussian War.

François Achille BazaineKingdom of PrussiaSiege of Metz (1870)Franco-Prussian War

The first underground New York City Subway line opens; the system becomes the biggest in United States, and one of the biggest in the world.

New York City Subway

Černová massacre: Fifteen people are killed in the Hungary when a gunman opens fire on a crowd gathered at a church consecration, which leads to protests over the treatment of minorities in Austria-Hungary.

Černová massacreLands of the Crown of Saint Stephen

The British lose their first battleship of World War I: The British super-dreadnought battleship HMS Audacious (23,400 tons) is sunk off Tory Island, north-west of Ireland, by a minefield laid by the armed German merchant-cruiser Berlin. The loss was kept an official secret in Britain until 14 November 1918 (three days after the end of the war). The sinking was witnessed and photographed by passengers on RMS Olympic.

World War ISuper-dreadnoughtHMS Audacious (1912)Tory IslandNaval mine

Battle of Segale: Negus Mikael, marching on the Ethiopian capital in support of his son Emperor Iyasu V, is defeated by Fitawrari abte Giyorgis, securing the throne for Empress Zewditu I.

Battle of SegaleEthiopiaIyasu VZewditu I

A referendum in Rhodesia rejects the country's annexation to the South African Union.

Southern Rhodesian government referendum, 1922South African Union

The Uzbek SSR is founded in the Soviet Union.

Uzbek Soviet Socialist RepublicSoviet Union

Ratifications exchanged in London for the first London Naval Treaty, signed in April modifying the 1925 Washington Naval Treaty and the arms limitation treaty's modified provisions, go into effect immediately, further limiting the expensive naval arms race among its five signatories.

London Naval TreatyWashington Naval TreatyTreaty

Mrs Wallis Simpson obtains her divorce decree nisi, which would eventually allow her to marry King Edward VIII of the United Kingdom, thus forcing his abdication from the throne.

Wallis SimpsonDecree nisiEdward VIIIEdward VIII abdication crisis

World War II: German forces capture Banská Bystrica during Slovak National Uprising thus bringing it to an end.

World War IIWehrmachtBanská BystricaSlovak National Uprising

Benjamin O. Davis, Jr. becomes the first African-American general in the United States Air Force.

Benjamin O. Davis, Jr.African-AmericanUnited States Air Force

Iskander Mirza, the first President of Pakistan, is deposed in a bloodless coup d'état by General Ayub Khan, who had been appointed the enforcer of martial law by Mirza 20 days earlier.

Iskander MirzaPresident of PakistanCoup d'étatAyub Khan (President of Pakistan)Martial law

NASA tests the first Saturn I rocket in Mission Saturn-Apollo 1.

NASASaturn IRocketSA-1 (Apollo)

Major Rudolf Anderson of the United States Air Force becomes the only direct human casualty of the Cuban Missile Crisis when his U-2 reconnaissance airplane is shot down over Cuba by a Soviet-supplied SA-2 Guideline surface-to-air missile.

Rudolf AndersonCuban Missile CrisisLockheed U-2SA-2 GuidelineSurface-to-air missile

A plane carrying Enrico Mattei, post-war Italian administrator, crashes in mysterious circumstances.

Enrico Mattei

Ronald Reagan delivers a speech on behalf of the Republican candidate for president, Barry Goldwater. The speech launches his political career and comes to be known as "A Time for Choosing".

Ronald ReaganBarry GoldwaterA Time for Choosing

Catholic priest Philip Berrigan and others of the 'Baltimore Four' protest the Vietnam War by pouring blood on Selective Service records.

Philip BerriganSelective Service

The Democratic Republic of the Congo is renamed Zaire.

Democratic Republic of the CongoZaire