History Events on April 21

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_Mutina

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

#Action_of_21_April_1806

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_Justice

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

#Tiradentes

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.

#Brasília

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

#Al-Baqi'

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_Pasha

Romulus founds Rome (traditional date).

#Romulus

Nintendo launched the original Game Boy in Japan. The portable video game system had four Japanese launch titlesl; Super Mario Land, Alleyway, Baseball, and Yakuman.

#Nintendo

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.

#Bangkok

Vietnam War: President of South Vietnam Nguy?n V?n Thi?u flees Saigon, as Xuân L?c, the last South Vietnamese outpost blocking a direct North Vietnamese assault on Saigon, falls.

#Vietnam_War

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_Inscription

Baseball: Rollie Fingers of the Milwaukee Brewers becomes the first pitcher to record 300 saves.

#Baseball

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

#Lodi_dynasty

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.

#Landshut

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)

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_War

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

#World_War_II

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_Exposition

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

#Ypiranga_incident

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

The Wignacourt Aqueduct is inaugurated in Malta.

#Wignacourt_Aqueduct

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

#1964_New_York_World's_Fair

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_Revolution

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_I

Tiananmen Square protests of 1989: In Beijing, around 100,000 students gather in Tiananmen Square to commemorate Chinese reform leader Hu Yaobang.

The Tamil Tigers are blamed for a car bomb that detonates in the Sri Lankan capital city of Colombo, killing 106 people.

The compound of the militant group The Covenant, The Sword, and the Arm of the Lord surrenders to federal authorities in Arkansas after a two-day government siege.

Annie opens on Broadway.

A few days before the general election in Greece, Colonel George Papadopoulos leads a coup d'état, establishing a military regime that lasts for seven years.

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

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

United Nations Security Council Resolution 47 relating to Kashmir conflict is adopted.

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).

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.

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

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

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

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