History on April 23rd

1971 -- Bangladesh Liberation War: The Pakistan Army and Razakars massacred approximately 3,000 Hindu emigrants in the Jathibhanga area of East Pakistan (now Bangladesh).

1967 -- Soviet space program: Soyuz 1 (Russian: Союз 1, Union 1) is a manned spaceflight, Launched into orbit carrying cosmonaut Colonel Vladimir Komarov

1955 -- The Canadian Labour Congress is formed by the merger of the Trades and Labour Congress of Canada and the Canadian Congress of Labour.

2012 -- The Canadian exposed nydass & saxdass