WHAT ALL HAPPENED APRIL TO JULY 1971
Find out what all happened April to July 1971

Apollo program: Apollo 15 astronauts become the first to ride in a lunar rover. (31. July 1971)

Launch of Salyut 1, the first space station. (19. April 1971)

The Australian Aboriginal Flag is flown for the first time. (12. July 1971)

Right to vote: the Twenty-sixth Amendment to the United States Constitution, lowering the voting age from 21 to 18 years, is formally certified by President Richard Nixon. (5. July 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)

President Richard Nixon declares the U.S. War on Drugs. (17. June 1971)

Copper mines in Chile are nationalized. (11. July 1971)

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

Charles Manson is sentenced to death (later commuted life imprisonment) for conspiracy to commit the Tate/LaBianca murders. (19. April 1971)

President Richard Nixon announces his decision to increase the rate of American troop withdrawals from Vietnam. (7. April 1971)

Mariner program: Mariner 9 is launched to map 70% of the surface, and to study temporal changes in the atmosphere and surface, of Mars. (30. May 1971)

The U.S. Government forcibly removes the last holdouts to the Native American Occupation of Alcatraz, ending 19 months of control. (11. June 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)

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

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

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

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

Bangladesh Liberation War: The Pakistan Army and Razakars massacre approximately 3,000 Hindu emigrants in the Jathibhanga area of East Pakistan (now Bangladesh). (23. April 1971)

Ping-pong diplomacy: In an attempt to thaw relations with the United States, the People's Republic of China hosts the U.S. table tennis team for a week-long visit. (10. April 1971)

A midair collision between a Hughes Airwest Douglas DC-9 jetliner and a United States Marine Corps McDonnell Douglas F-4 Phantom II jet fighter near Duarte, California, claims 50 lives. (6. June 1971)