April 29 - The third anniversary of the Broadway musical Hair was celebrated with a concert at a Central Park bandshell.
May 3 - Anti-war militants attempt to disrupt government business in Washington, D.C; police and military units arrest as many as 12,000, most of whom are later released.
June 1 - Vietnam War: Vietnam Veterans for a Just Peace, claiming to represent the majority of U.S. veterans who served in southeast Asia, speak against war protests.
June 17 - Representatives of Japan and the United States sign the Okinawa Reversion Agreement, setting out a plan where the U.S. would return control of Okinawa.[1]
June 28 - Black assassin shoots Joe Colombo to the head in a middle of a Italian-American rally. Colombo goes into coma.
June 30 - The crew of the Soyuz 11 spacecraft are killed when their air supply leaks out through a faulty valve.
August 9 - British security forces in Northern Ireland detain hundreds of guerilla suspects and put them into Long Kesh - the beginning of an internment without trial policy. 20 die in riots that follow.
September 4 - A Boeing 727 carrying Alaska Airlines Flight 1866 crashes into the side of a mountain near Juneau, Alaska killing all 111 people on board.
