What day of the week was April 4, 1975?

The day of the week April 4th, 1975 fell on was a Friday.

Microsoft is founded as a partnership between Bill Gates and Paul Allen in Albuquerque the New Mexico Vietnam War: Operation Baby Lift A United States Air Force Lockheed C-5A Galaxy transporting orphans the crashes near Saigon, South Vietnam shortly after takeoff; 172 die.