The Beatles break up, and 448 U.S. colleges and universities are closed or go on strike and killing of students by the National Guard at Kent State and Jackson State universities.
First Earth Day celebrated, reinvigorating the environmental movement worldwide.
Soviet dissident and author Alexander Solzhenitsyn wins the Nobel Prize for literature.
U.S. forces in Vietnam reduced to below 400,000 troops.
The Apollo 13 space mission was launched from Cape Kennedy and the Russian unmanned spacecrafts Luna 16 and Luna 17 land on the Moon.
Salvatore Allende, the first elected Marxist leader in the Americas, is voted in President of Chile.
1971
U.S. planes bomb Vietcong Supply routes in Cambodia, spreading the war beyond Vietnam.
Dictator Idi Amin takes power in Uganda.
Cigarette advertisements are banned from U.S. television.
Rolls Royce Company declares bankrupcy.
Kennedy Center for the Performing Arts opens in Washington, D.C.
Lt. William Calley found guilty of premeditated murder in the Mylai Massacre and the first installment of the Pentagon Papers published by the New York Times.
The 26th Amendment to the Constitution, allowing 18-year olds to vote, is ratified.
British filmmaker Stanley Kubrick releases A Clockwork Orange.
Bill Graham closes Fillmore East and Fillmore West.
Charles Manson found guilty of ordering Sharon Tate's murder.
Ten guards and 32 prisoners killed in Attica New York State Prison following uprising.
1972
President Nixon visits China and re-elected in near-landslide, but Democrats win majority in both houses of Congress.
U.S. Supreme Court effectively bans capital punishment as cruel and unusual.
British anthropologist Richard Leakey discovers 2.5 million year-old human skull in Kenya.
FBI Director J. Edgar Hoover dies after serving for 48 years.
Terrorists kill two Israeli athletes at the Munich Olympics.
Bobby Fischer wins world chess title from Boris Spassky.
1973
Watergate scandal