WHAT ALL HAPPENED APRIL TO JUNE 1973
Find out what all happened April to 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)

HNS Velos (D-16), while participating in a NATO exercise and in order to protest against the dictatorship in Greece, anchored at Fiumicino, Italy, refusing to return to Greece. (25. May 1973)

In handing down the decision in Miller v. California 413 US 15, the Supreme Court of the United States establishes the Miller Test for obscenity in U.S. law. (21. June 1973)

Tom Bradley is elected the first black mayor of Los Angeles, California. (29. May 1973)

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

A 71-day standoff between federal authorities and the American Indian Movement members occupying the Pine Ridge Reservation at Wounded Knee, South Dakota ends with the surrender of the militants. (8. May 1973)

Launch of the LexisNexis computerized legal research service. (2. April 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)

A fire at a house in Hull, England which kills a six year old boy is passed off as an accident; it later emerges as the first of 26 deaths by fire caused over the next seven years by arsonist Peter Dinsdale. (23. June 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)

At Plesetsk Cosmodrome 9 people are killed in an explosion of a Cosmos 3-M rocket. (26. June 1973)

The United States Senate votes to cut off funding for the bombing of Khmer Rouge targets within Cambodia, hastening the end of the Cambodian Civil War. (31. May 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)

The Portuguese Socialist Party is founded in the German town of Bad Münstereifel. (19. April 1973)

Watergate scandal: U.S. President Richard Nixon announces that top White House aides H. R. Haldeman, John Ehrlichman and others have resigned. (30. April 1973)

A Lockheed C-141 Starlifter, dubbed the Hanoi Taxi, makes the last flight of Operation Homecoming. (4. April 1973)

A Soviet supersonic Tupolev Tu-144 crashes near Goussainville, France, killing 14, the first crash of a supersonic passenger aircraft. (3. June 1973)

Skylab, the United States' first space station, is launched. (14. May 1973)

Project Tiger, a tiger conservation project, is launched in the Corbett National Park, India. (1. April 1973)

George Lucas begins writing the treatment for The Star Wars. (17. April 1973)