Romulus founds Rome (traditional date).

RomulusFounding of Rome

Battle of Mutina: Mark Antony is again defeated in battle by Aulus Hirtius, who is killed. Antony fails to capture Mutina and Decimus Brutus is murdered shortly after.

Battle of MutinaMark AntonyAulus HirtiusMutinaDecimus Junius Brutus Albinus

The Laguna Copperplate Inscription (the earliest known written document found in what is now the Philippines): the Commander-in-Chief of the Kingdom of Tondo, as represented by the Honourable Jayadewa, Lord Minister of Pailah, pardons from all debt the Honourable Namwaran and his relations.

Laguna Copperplate InscriptionPhilippinesKingdom of TondoPila, Laguna

The Diocese of Pisa is elevated to the rank of metropolitan archdiocese by Pope Urban II

Diocese of PisaArchdiocesePope Urban II

The three-day Lisbon Massacre comes to an end with the slaughter of over 1,900 suspected Jews by Portuguese Catholics.

Lisbon Massacre

Henry VIII ascends the throne of England on the death of his father, Henry VII.

Henry VIII of EnglandHenry VII of England

The last ruler of the Lodi dynasty, Ibrahim Lodi is defeated and killed by Babur in the First Battle of Panipat.

Lodi dynastyIbrahim LodiBaburFirst Battle of Panipat

The Wignacourt Aqueduct is inaugurated in Malta.

Wignacourt AqueductHistory of Malta under the Order of Saint John

The city of Rattanakosin, now known internationally as Bangkok, is founded on the eastern bank of the Chao Phraya River by King Buddha Yodfa Chulaloke.

BangkokHistory of BangkokBuddha Yodfa Chulaloke

Tiradentes, a revolutionary leading a movement for Brazil's independence, is hanged, drawn and quartered.

TiradentesRevolutionaryIndependence of BrazilHanged, drawn and quartered

Twelve thousand Wahhabis under Abdul-Aziz bin Muhammad, invaded city of Karbala, killed over three thousand inhabitants, and sacked the city.

WahhabiAbdul-Aziz bin MuhammadWahhabi sack of KarbalaKarbala

Action of 21 April 1806: A French frigate escapes British forces off the coast of South Africa.

Action of 21 April 1806

Two Austrian army corps are driven from Landshut by a First French Empire army led by Napoleon as two French corps to the north hold off the main Austrian army on the first day of the Battle of Eckmühl.

LandshutFirst French EmpireNapoleonBattle of Eckmühl

Benderli Ali Pasha arrives in Constantinople as the new Grand Vizier of the Ottoman Empire; he remains in power for only nine days before being sent into exile.

Benderli Ali PashaGrand Vizier of the Ottoman Empire

Texas Revolution: The Battle of San Jacinto: Republic of Texas forces under Sam Houston defeat troops under Mexican General Antonio López de Santa Anna.

Texas RevolutionBattle of San JacintoRepublic of TexasSam HoustonAntonio López de Santa Anna

Australian labour movement: Stonemasons and building workers on building sites around Melbourne march from the University of Melbourne to Parliament House to achieve an eight-hour day.

Australian labour movementEight-hour day

Norway formally adopts the Krag-Jørgensen bolt-action rifle as the main arm of its armed forces, a weapon that would remain in service for almost 50 years.

Krag-Jørgensen

Spanish-American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.

Spanish-American WarCubaUnited States CongressDeclaration of war

Ypiranga incident: A German arms shipment to Mexico is intercepted by the U.S. Navy near Veracruz.

Ypiranga incidentVeracruz (city)

World War I: German fighter ace Manfred von Richthofen, better known as "The Red Baron", is shot down and killed over Vaux-sur-Somme in France.

World War IGerman EmpireManfred von RichthofenVaux-sur-SommeFrench Third Republic

Al-Baqi cemetery, former site of the mausoleum of four Shi'a Imams, is leveled to the ground by Wahhabis.

Al-Baqi'The Twelve ImamsDemolition of al-BaqiWahhabism

The "Surgeon's Photograph", the most famous photo allegedly showing the Loch Ness Monster, is published in the Daily Mail (in 1999, it is revealed to be a hoax).

Loch Ness MonsterDaily Mail

World War II: Soviet forces south of Berlin at Zossen attack the German High Command headquarters.

World War IISoviet UnionZossenNazi GermanyOberkommando der Wehrmacht

Secretary's Day (now Administrative Professionals' Day) is first celebrated.

Secretary's Day

Brasília, Brazil's capital, is officially inaugurated. At 09:30, the Three Powers of the Republic are simultaneously transferred from the old capital, Rio de Janeiro.

BrasíliaRio de Janeiro

The Seattle World's Fair (Century 21 Exposition) opens. It is the first World's Fair in the United States since World War II.

Century 21 ExpositionWorld's Fair

The first election of the Universal House of Justice is held, marking its establishment as the supreme governing institution of the Bahá'í Faith.

Universal House of JusticeBahá'í Faith

A Transit-5bn satellite fails to reach orbit after launch; as it re-enters the atmosphere, 2.1 pounds (0.95 kg) of radioactive plutonium in its SNAP RTG power source is widely dispersed.

Transit (satellite)PlutoniumSystems Nuclear Auxiliary Power ProgramRadioisotope thermoelectric generator

The 1964-1965 New York World's Fair opens for its second and final season.

1964 New York World's Fair

Rastafari movement: Haile Selassie of Ethiopia visits Jamaica, an event now celebrated as Grounation Day.

Rastafari movementHaile SelassieEthiopiaJamaicaGrounation Day