WHAT HAPPENED IN 1972.
Look what happened the 1972.

The Soviet unmanned spaceship Luna 20 lands on the Moon. (21. February 1972)

The Official Irish Republican Army detonates a car bomb at Aldershot barracks, killing seven and injuring nineteen others. (22. February 1972)

The Buffalo Creek Flood caused by a burst dam kills 125 in West Virginia. (26. February 1972)

Sino-American relations: The United States and People's Republic of China sign the Shanghai Communiqué. (28. February 1972)

Vietnam War: Vietnamization – South Korea withdraws 11,000 of its 48,000 troops from Vietnam. (29. February 1972)

The Thai province of Yasothon is created after being split off from the Ubon Ratchathani province. (1. March 1972)

The Pioneer 10 space probe is launched from Cape Canaveral, Florida with a mission to explore the outer planets. (2. March 1972)

Mohawk Airlines Flight 405 crashes as a result of a control malfunction and insufficient training in emergency procedures. (3. March 1972)

Italian publisher and former partisan Giangiacomo Feltrinelli is killed by an explosion near Segrate. (14. March 1972)

The Troubles: A Provisional IRA car bomb kills seven and injures 148 in Belfast, Northern Ireland. It was the first of many car bomb attacks by the group. (20. March 1972)

The United States Congress sends the Equal Rights Amendment to the states for ratification. (22. March 1972)

In Eisenstadt v. Baird, the United States Supreme Court decides that unmarried persons have the right to possess contraceptives. (22. March 1972)

The United Kingdom imposes direct rule over Northern Ireland. (24. March 1972)

Vietnam War: The Easter Offensive begins after North Vietnamese forces cross into the Demilitarized Zone (DMZ) of South Vietnam. (30. March 1972)

Actor Charlie Chaplin returns to the United States for the first time since being labeled a communist during the Red Scare in the early 1950s. (2. April 1972)

Vietnam War: Easter Offensive – American forces begin sustained air strikes and naval bombardments. (6. April 1972)

20 days after he is kidnapped in Buenos Aires, Oberdan Sallustro is murdered by communist guerrillas. (10. April 1972)

Tombs containing bamboo slips, among them Sun Tzu's Art of War and Sun Bin's lost military treatise, are accidentally discovered by construction workers in Shandong. (10. April 1972)

Vietnam War: For the first time since November 1967, American B-52 bombers reportedly begin bombing North Vietnam. (10. April 1972)

Seventy-four nations sign the Biological Weapons Convention, the first multilateral disarmament treaty banning the production of biological weapons. (10. April 1972)