WHAT HAPPENED ON 6. DECEMBER
Want to find out what all happened on 6. December

Béla I is crowned king of Hungary. (6. December 1060)

Mongol invasion of Rus': Kiev under Danylo of Halych and Voivode Dmytro falls to the Mongols under Batu Khan. (6. December 1240)

The city of Quito in Ecuador is founded by Spanish settlers led by Sebastián de Belalcázar. (6. December 1534)

Colonel Thomas Pride of the New Model Army purges the Long Parliament of MPs sympathetic to King Charles I of England, in order for the King's trial to go ahead; came to be known as "Pride's Purge". (6. December 1648)

Battle of Chamkaur: During the Mughal-Sikh Wars, an outnumbered Sikh Khalsa defeats a Mughal army. (6. December 1704)

Charles Edward Stuart's army begins retreat during the second Jacobite Rising. (6. December 1745)

The first edition of the Encyclopædia Britannica is published. (6. December 1768)

The U.S. Congress moves from New York City to Philadelphia, Pennsylvania. (6. December 1790)

The Thirteenth Amendment to the United States Constitution is ratified, banning slavery. (6. December 1865)

The first edition of the Washington Post is published. (6. December 1877)

The Washington Monument in Washington, D.C., is completed. (6. December 1884)

London becomes the world's first city to host licensed taxicabs. (6. December 1897)

Theodore Roosevelt articulated his "Corollary" to the Monroe Doctrine, stating that the U.S. would intervene in the Western Hemisphere should Latin American governments prove incapable or unstable. (6. December 1904)

A coal mine explosion at Monongah, West Virginia, kills 362 workers. (6. December 1907)

World War I: The Central Powers capture Bucharest. (6. December 1916)

Finland declares independence from Russia. (6. December 1917)

Halifax Explosion: A munitions explosion near Halifax, Nova Scotia kills more than 1,900 people in the largest artificial explosion up to that time. (6. December 1917)

World War I: USS Jacob Jones is the first American destroyer to be sunk by enemy action when it is torpedoed by German submarine SM U-53. (6. December 1917)

The Anglo-Irish Treaty is signed in London by British and Irish representatives. (6. December 1921)

One year to the day after the signing of the Anglo-Irish Treaty, the Irish Free State comes into existence. (6. December 1922)