

1939 – General Władysław Sikorski becomes commander-in-chief of the Polish Government in exile.1938 – The League of Nations unanimously outlaws "intentional bombings of civilian populations".1935 – "The Adventures of Dick Tracy" is first heard on the Mutual Radio Network.states of Arizona and Nevada, is dedicated. 1935 – The Hoover Dam, astride the border between the U.S.1927 – Babe Ruth becomes the first baseball player to hit 60 home runs in a single season.1915 – A Serbian army private becomes the first soldier in history to shoot down an enemy aircraft with ground-to-air fire.1911 – The dam of the Austin Reservoir in Pennsylvania bursts, killing 78 people.It is the final resting place of US President William McKinley and his family. 1907 – Opening of the McKinley National Memorial in Canton, Ohio.

1906 – Real Academia Galega, Galician language biggest linguistic authority starts working in Havana.1895 – Madagascar becomes a French protectorate.1888 – Jack the Ripper kills his third and fourth victims, Elizabeth Stride and Catherine Eddowes.1885 – Bechuanaland, in present-day Botswana, becomes a British Protectorate.1882 – The world's first commercial hydroelectric power plant (later known as Appleton Edison Light Company) begins operation on the Fox River in Appleton, Wisconsin, United States.1867 – The US takes control of the Midway Islands in the Pacific Ocean.1860 – The UK's first tram service begins in Birkenhead, Merseyside.1813 – Battle of Bárbula: Simón Bolívar defeats Santiago Bobadilla.1791 – The National Constituent Assembly in Paris is dissolved Parisians hail Maximilien Robespierre and Jerome Petion as 'incorruptible patriots'.1791 – First performance of The Magic Flute: This is the last opera by Wolfgang Amadeus Mozart to have its premiere.1744 – France and Spain defeat the Kingdom of Sardinia at the Battle of Madonna dell'Olmo.1512 – A rock avalanche buries most of the town of Biasca in Ticino, in the Italian-speaking part of Switzerland.


