The temperature on April 5, 1947 was between -0.6 °C and 8.8 °C and averaged 5.4 °C. There was 1.8 mm of rain during 1.6 hours. There was 5.7 hours of sunshine (43%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 3 » Proceedings of the U.S. Congress are televised for the first time.
February 10 » The Paris Peace Treaties are signed by Italy, Romania, Hungary, Bulgaria, Finland and the Allies of World War II.
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.
August 7 » Thor Heyerdahl's balsa wood raft, the Kon-Tiki, smashes into the reef at Raroia in the Tuamotu Islands after a 101-day, 7,000 kilometres (4,300mi) journey across the Pacific Ocean in an attempt to prove that pre-historic peoples could have traveled from South America.
September 15 » Typhoon Kathleen hit the Kantō region in Japan killing 1,077.
October 1 » The North American F-86 Sabre flies for the first time.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I63091.php : accessed February 19, 2026), "NN Bos (1947)".
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