April 11, 1951 US President Truman relieves General Douglas MacArthur of his command in the Far East.    

April 12, 1961 Russian cosmonaut, Yuri Alexeyevich Gagarin, experiences the weightlessness of space for 108 minutes. He orbits the Earth once before making a safe landing. His spaceship, Vostok I, is guided entirely from the ground.

April 13, 1919 In the Amritsar Massacre British forces under the command of Genera