The Battle of Pelekanon results in a Byzantine defeat by the Ottoman Empire.
Osceola leads his Seminole warriors in Florida into the Second Seminole War against the United States Army.
The first complete English-language Bible (the Coverdale Bible) is printed, with translations by William Tyndale and Myles Coverdale.
In France, a modified TGV train achieves a new rail world speed record of 515.3 km/h (320.2 mph).
Frederick I Barbarossa is elected King of Germany.
New Vietnam Revolutionary Party is founded in Huế amid providing some of the communist party's most important leaders in its early years.
HMS Duchess sinks after a collision with HMS Barham off the coast of Scotland with the loss of 124 men.
Opening of the Dublin and Kingstown Railway, the first public railway on the island of Ireland.
In Edmond, Oklahoma, U.S. Postal employee Patrick Sherrill guns down 14 of his co-workers and then commits suicide.
The Grand Duchy of Baden announces her withdrawal from the German Confederation and signs a treaty of peace and alliance with Prussia.
The American Library Association was founded.
World War I: South African troops land in German South West Africa.
Chinese Civil War: Battle of Yijiangshan Islands is fought.
The United Kingdom recognizes the USSR.
The Sydney Opera House opens.
Sixty-six people die in a nightclub fire in Bangkok, Thailand.
More than 70 people are killed in a building collapse in Thane, India.
World War II: Allied forces launch the first of four assaults on Monte Cassino with the intention of breaking through the Winter Line and seizing Rome ...
George H. W. Bush and Mikhail Gorbachev sign a treaty to end chemical weapon production.
Brazil loses 1-7 to Germany in the 2014 FIFA World Cup semi-final. The event is known as Mineirazo.