The temperature on December 14, 1963 was between -10.3 °C and -1.4 °C and averaged -3.8 °C. The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 8 » Leonardo da Vinci's Mona Lisa is exhibited in the United States for the first time, at the National Gallery of Art in Washington, D.C.
June 17 » A day after South Vietnamese President Ngô Đình Diệm announced the Joint Communiqué to end the Buddhist crisis, a riot involving around 2,000 people breaks out. One person is killed.
July 22 » Crown Colony of Sarawak gains self-governance.
August 5 » Cold War: The United States, the United Kingdom, and the Soviet Union sign the Partial Nuclear Test Ban Treaty.
October 10 » The Partial Nuclear Test Ban Treaty comes into effect.
October 22 » A BAC One-Eleven prototype airliner crashes in UK with the loss of all on board.
When copying data from this family tree, please include a reference to the origin: Leo Koster, "Family tree Koster / Coster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster-coster/I356.php : accessed February 28, 2026), "Cor Boele (-< 2004)".
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