The temperature on July 5, 1947 was between 12.4 °C and 17.9 °C and averaged 15.4 °C. There was 7.7 mm of rain during 2.8 hours. There was 5.3 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-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.
July 1 » The Philippine Air Force is established.
July 6 » The AK-47 goes into production in the Soviet Union.
July 19 » Korean politician Lyuh Woon-hyung is assassinated.
December 16 » William Shockley, John Bardeen and Walter Brattain build the first practical point-contact transistor.
When copying data from this family tree, please include a reference to the origin: Hans Pruckmuller, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/van-willigen-stamboom/I262.php : accessed January 2, 2026), "Jacob van Willigen (1902-1947)".
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