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 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.
March 1 » The International Monetary Fund begins financial operations.
July 10 » Muhammad Ali Jinnah is recommended as the first Governor-General of Pakistan by the British Prime Minister, Clement Attlee.
August 17 » The Radcliffe Line, the border between the Dominions of India and Pakistan, is revealed.
October 5 » President Truman makes the first televised Oval Office address.
December 17 » First flight of the Boeing B-47 Stratojet strategic bomber.
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 17, 2026), "Hendrik Jan Haak (1909-)".
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