WHAT ALL HAPPENED SEPTEMBER TO NOVEMBER 1971
Find out what all happened September to November 1971

Mariner 9 enters orbit around Mars. (14. November 1971)

Representatives of the People's Republic of China attend the United Nations, including the United Nations Security Council, for the first time. (23. November 1971)

Walt Disney World opens near Orlando, Florida, United States. (1. October 1971)

Fred Quilt, a leader of the Tsilhqot'in First Nation suffers severe abdominal injuries allegedly caused by Royal Canadian Mounted Police officers; he dies two days later. (28. November 1971)

Enthronment of Pope Shenouda III as Pope of Alexandria. (14. November 1971)

Intel releases the world's first commercial single-chip microprocessor, the 4004. (15. November 1971)

Montagnard troops of South Vietnam revolt against the rule of Nguyen Khanh, killing 70 ethnic Vietnamese soldiers. (19. September 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)

In Cambodia, Khmer Rouge forces attack the city of Phnom Penh and its airport, killing 44, wounding at least 30 and damaging nine aircraft. (10. November 1971)

In Washington, D.C., the John F. Kennedy Center for the Performing Arts is inaugurated, with the opening feature being the premiere of Leonard Bernstein's Mass. (8. September 1971)

In Macon, Georgia, guitarist Duane Allman is killed in a motorcycle accident. (29. October 1971)

Iran seizes the Greater and Lesser Tunbs from the United Arab Emirates. (30. November 1971)

The first brain-scan using x-ray computed tomography (CT or CAT scan) is performed at Atkinson Morley Hospital in Wimbledon, London. (1. October 1971)

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

The Freetown Christiania was founded. (26. September 1971)

Vietnam War: As part of Vietnamization, US President Richard M. Nixon sets February 1, 1972 as the deadline for the removal of another 45,000 American troops from Vietnam. (12. November 1971)

The United Nations seated the People's Republic of China and expelled the Republic of China (see political status of Taiwan and China and the United Nations) (25. October 1971)

The United States Atomic Energy Commission tests the largest U.S. underground hydrogen bomb, code-named Cannikin, on Amchitka Island in the Aleutians. (6. November 1971)

The four-day Attica Prison riot begins, which eventually results in 39 dead, most killed by state troopers retaking the prison. (9. September 1971)

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