Wikipedia:Selected anniversaries/May 9
May 9: Victory Day in various Eastern European countries, Europe Day in the European Union.
- 1092 - Lincoln Cathedral in Lincolnshire, England was consecrated.
- 1901 - The first Parliament of Australia opened in the Royal Exhibition Building in Melbourne.
- 1945 - End of World War II in Europe: The signing of a second German Instrument of Surrender, specifying the capitulation of the Wehrmacht to the Soviet Red Army, was announced.
- 1946 - King Victor Emmanuel III of Italy abdicated.
- 1950 - Dianetics: The Modern Science of Mental Health by L. Ron Hubbard, the founder of Scientology and Dianetics, was first published.