The temperature on September 3, 1947 was between 10.7 °C and 23.7 °C and averaged 16.6 °C. There was 0.1 mm of rain. There was 5.9 hours of sunshine (44%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
April 28 » Thor Heyerdahl and five crew mates set out from Peru on the Kon-Tiki to demonstrate that Peruvian natives could have settled Polynesia.
July 6 » The AK-47 goes into production in the Soviet Union.
July 26 » Cold War: U.S. President Harry S. Truman signs the National Security Act of 1947 into United States law creating the Central Intelligence Agency, United States Department of Defense, United States Air Force, Joint Chiefs of Staff, and the United States National Security Council.
September 15 » Typhoon Kathleen hit the Kantō region in Japan killing 1,077.
November 17 » The Screen Actors Guild implements an anti-Communist loyalty oath.
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: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I17252.php : accessed January 30, 2026), "Johan Diederick Smit (1874-1947)".
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