What happend on 17th December

16.12
18.12
1973

The American Psychiatric Association removes homosexuality from its list of mental illnesses.

1970

Coastal cities events Mass riots in the coastal cities of Poland ended in massacre of shipyard workers in Gdynia

1970

My Lai trial begins

1969

The U.S. Air Force announces that its UFO investigations have found no evidence of extraterrestrial spacecraft.

1969

SALT I talks begin

1967

Harold Holt, Prime Minister of Australia (b. 1908) disappears while swimming near Portsea, Victoria

1961

A fire at a circus in Niteroi, Brazil kills 323 people.

1961

India seizes Goa from Portugal

1944

In what became known as the Malmédy massacre, around 80 American POW are executed by Waffen-SS troops of Jochen Peiper’s Kampfgruppe.

1944

Western Defense Command issues proclamation ending requirement of Japanese internment.