The temperature on April 4, 1947 was between 2.0 °C and 11.0 °C and averaged 6.8 °C. There was 6.2 mm of rain during 3.7 hours. There was 0.2 hours of sunshine (2%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
February 18 » First Indochina War: The French gain complete control of Hanoi after forcing the Viet Minh to withdraw to mountains.
April 6 » The first Tony Awards are presented for theatrical achievement.
June 23 » The United States Senate follows the United States House of Representatives in overriding U.S. President Harry S. Truman's veto of the Taft–Hartley Act.
June 24 » Kenneth Arnold makes the first widely reported UFO sighting near Mount Rainier, Washington, leading to the coining of the phrase "flying saucer".
November 25 » Red Scare: The "Hollywood Ten" are blacklisted by Hollywood movie studios.
November 29 » Partition Plan: The United Nations General Assembly approves a plan for the partition of Palestine.
When copying data from this family tree, please include a reference to the origin: Marieke Cooper, "Family tree Cooper, Kooper, Oostwal, Robert, Ooteman en Blokland", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-cooper/I4012.php : accessed January 21, 2026), "Christiaan Frederik Ludwich Vreden (± 1911-1947)".
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