2nd » Vietnam War: Thousands of civilian refugees flee from Quảng Ngãi Province in front of advancing North Vietnamese troops.
3rd » Bobby Fischer refuses to play in a chess match against Anatoly Karpov, giving Karpov the title of World Champion by default.
4th » Microsoft is founded as a partnership between Bill Gates and Paul Allen in Albuquerque, New Mexico
4th » Vietnam War: Operation Baby Lift A United States Air Force Lockheed C-5 Galaxy or Lockheed C-5A Galaxy transporting orphans, crashes near Saigon, South Vietnam shortly after takeoff; 172 die.
9th » The first game of the Philippine Basketball Association, the second oldest professional basketball league in the world.
13th » Bus massacre in Lebanon: An attack by the Kataeb Party e.g Phalangist resistance kills 26 militia members of the Popular Front for the Liberation of Palestine, marking the start of the 15-year Lebanese Civil War.
17th » The Cambodian Civil War ends. The Khmer Rouge captures the capital Phnom Penh and Khmer National Armed Forces named Cambodian government forces surrender.
21st » 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.
25th » As North Vietnamese Army called North Vietnamese forces close in on the South Vietnamese capital (political) or capital Saigon, the Australian Embassy is closed and evacuated, almost ten years to the day since the first Australian troop commitment to Sout
28th » General Cao Van Vien, chief of the Army of the Republic of Vietnam called South Vietnamese military, departs for the US as the North Vietnamese Army Ho Chi Minh Campaign known as closed in on victory.
29th » Vietnam War: Operation Frequent Wind: The U.S. begins to evacuate U.S. citizens from Saigon prior to an expected North Vietnamese takeover. U.S. involvement in the war comes to an end.
30th » Fall of Saigon: Communist forces gain control of Saigon. The Vietnam War formally ends with the unconditional surrender of South Vietnamese president Dương Văn Minh.