1460: Battle of Wakefield: Duke of York is killed and his forces are soundly defeated by those of King Henry VI in northern England during the Wars of the Roses

1906: All-India Muslim League is founded in Dacca in East Bengal, British India, later lays the foundations for Pakistan

1922: Creation of the USSR is formally proclaimed in Moscow at the Bolshoi Theatre, organized as a union (U) of the Russian, Ukrainian, Byelorussian and Transcaucasian Soviet Socialist Republics (SSR)

1924: Astronomer Edwin Hubble formally announces the existence of other galaxies at a meeting of the American Astronomical Society

1950: Vietnam, Laos and Cambodia become independent states within the French Union

Source: Onthisday.com