WHAT ALL HAPPENED MARCH TO OCTOBER 1971
Find out what all happened March to October 1971

In accordance with the Uniform Monday Holiday Act passed by the U.S. Congress in 1968, observation of Memorial Day occurs on the last Monday in May for the first time, rather than on the traditional Memorial Day of May 30. (31. May 1971)

Bangladesh Liberation War: Beginning of Operation Searchlight by the Pakistani Armed Forces against East Pakistani civilians. (25. March 1971)

The Dahlerau train disaster, the worst railway accident in West Germany, kills 46 people and injures 25 near Wuppertal. (27. May 1971)

Having weakened after making landfall in Nicaragua the previous day, Hurricane Irene regains enough strength to be renamed Hurricane Olivia, making it the first known hurricane to cross from the Atlantic Ocean into the Pacific. (20. September 1971)

Sierra Leone becomes a republic, and Siaka Stevens the president. (19. April 1971)

Alaska Airlines Flight 1866 crashes near Juneau, Alaska, killing all 111 people on board. (4. September 1971)

The Egyptian Constitution becomes official. (11. September 1971)

President Richard Nixon completes the break from the gold standard by ending convertibility of the United States dollar into gold by foreign investors. (15. August 1971)

The Alcohol, Tobacco, and Firearms Division of the U.S. Internal Revenue Service raided the home of Ken Ballew for illegal possession of hand grenades. (7. June 1971)

In Sri Lanka, Janatha Vimukthi Peramuna launches a revolt against the United Front government of Sirimavo Bandaranaike. (5. April 1971)

Vietnam War: The New York Times begins publication of the Pentagon Papers. (13. June 1971)

President of Pakistan Yahya Khan indefinitely postpones the pending national assembly session, precipitating massive civil disobedience in East Pakistan. (1. March 1971)

A gas explosion kills 22 people at a shopping center in Clarkston, East Renfrewshire, near Glasgow, Scotland. (21. October 1971)

Soyuz program: Soyuz 11 is launched. (6. June 1971)

Mars probe program: Mars 2 is launched by the Soviet Union. (19. May 1971)

The Democratic Republic of the Congo is renamed Zaire. (27. October 1971)

My Lai massacre: Lieutenant William Calley is convicted of premeditated murder and sentenced to life in prison. (29. March 1971)

The crew of the Soviet Soyuz 11 spacecraft are killed when their air supply escapes through a faulty valve. (30. June 1971)

Oman joins the United Nations. (7. October 1971)

The United States Supreme Court overturned the conviction of Paul Cohen for disturbing the peace, setting the precedent that vulgar writing is protected under the First Amendment to the United States Constitution. (7. June 1971)