The temperature on April 1, 1947 was between 3.0 °C and 9.2 °C and averaged 6.4 °C. There was 6.9 mm of rain during 4.3 hours. There was 0.2 hours of sunshine (2%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
February 12 » Christian Dior unveils a "New Look", helping Paris regain its position as the capital of the fashion world.
February 21 » In New York City, Edwin Land demonstrates the first "instant camera", the Polaroid Land Camera, to a meeting of the Optical Society of America.
February 23 » International Organization for Standardization is founded.
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.
July 6 » The AK-47 goes into production in the Soviet Union.
September 15 » Typhoon Kathleen hit the Kantō region in Japan killing 1,077.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I4019.php : accessed January 19, 2026), "Hendrik Jan Haak (1909-)".
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