WHAT ALL HAPPENED JANUARY TO SEPTEMBER 1973
Find out what all happened January to September 1973

Martin Cooper of Motorola makes the first handheld mobile phone call to Joel S. Engel of Bell Labs, though it took ten years for the DynaTAC 8000X to become the first such phone to be commercially released. (3. April 1973)

The Pakistani Constitution of 1973 comes into effect. (14. August 1973)

Soviet Mars 5 space probe is launched. (25. July 1973)

Elections are held for the Northern Ireland Assembly, which will lead to power-sharing between unionists and nationalists in Northern Ireland for the first time. (28. June 1973)

King Mohammed Zahir Shah of Afghanistan is deposed by his cousin Mohammed Daoud Khan while in Italy undergoing eye surgery. (17. July 1973)

Elvis Presley's concert Aloha from Hawaii is broadcast live via satellite, and sets the record as the most watched broadcast by an individual entertainer in television history. (14. January 1973)

The American Indian Movement occupies Wounded Knee, South Dakota. (27. February 1973)

King Carl XVI Gustaf of Sweden has his investiture. (19. September 1973)

The crew of Apollo 17 addresses a joint session of Congress after the completion of the final Apollo moon landing mission. (22. January 1973)

A BLEVE (Boiling Liquid Expanding Vapor Explosion) in Kingman, Arizona, following a fire that broke out as propane was being transferred from a railroad car to a storage tank, kills eleven firefighters. (5. July 1973)

Secretariat (horse) wins the 1973 Kentucky Derby in 1:59 2/5, a still standing record. (5. May 1973)

In horseracing, Secretariat wins the Triple Crown. (9. June 1973)

Ezeiza massacre in Buenos Aires, Argentina. Snipers fire upon left-wing Peronists. At least 13 are killed and more than 300 are injured. (20. June 1973)

Citing government misconduct, Daniel Ellsberg has charges for his involvement in releasing the Pentagon Papers to The New York Times dismissed. (11. May 1973)

Major League Baseball owners vote in approval of the American League adopting the designated hitter position. (11. January 1973)

Guinea-Bissau declares its independence from Portugal. (24. September 1973)

Billie Jean King beats Bobby Riggs in The Battle of the Sexes tennis match at the Houston Astrodome in Houston, Texas. (20. September 1973)

Biju Patnaik of the Pragati Legislature Party is elected leader of the opposition in the state assembly in Odisha, India. (9. February 1973)

The Paris Peace Accords officially end the Vietnam War. Colonel William Nolde is killed in action becoming the conflict's last recorded American combat casualty. (27. January 1973)

In the Lillehammer affair in Norway, Israeli Mossad agents kill a waiter whom they mistakenly thought was involved in the 1972 Munich Olympics Massacre. (21. July 1973)