The temperature on December 30, 1947 was between -4.2 °C and 3.8 °C and averaged 0.9 °C. There was 2.9 mm of rain during 1.7 hours. There was 1.9 hours of sunshine (24%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
April 9 » United Nations Security Council Resolution 22 relating to Corfu Channel incident is adopted.
June 5 » Cold War: Marshall Plan: In a speech at Harvard University, the United States Secretary of State George Marshall calls for economic aid to war-torn Europe.
July 6 » The AK-47 goes into production in the Soviet Union.
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.
October 14 » Chuck Yeager becomes the first person to exceed the speed of sound.
December 6 » The Everglades National Park in Florida is dedicated.
When copying data from this family tree, please include a reference to the origin: Jos van Helvoirt, "Family tree Van Helvoirt Koenders", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-helvoirt-koenders/I9249.php : accessed May 16, 2024), "Annie Maria van Helvoort (1924-1947)".
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