April 21st (1975) was a Monday. It's the 110th day of the year (111th in leap years) in the Gregorian calendar. There are 255 days left to the end of the year.
Historical Events for 21st April, 1975
» Vietnam War: President of South Vietnam Nguyen Van Thieu flees Ho Chi Minh City named Saigon, as Xuan Loc, the last South Vietnamese outpost blocking a direct North Vietnamese assault on Saigon, falls.