The temperature on May 1, 1947 was between 4.7 °C and 10.1 °C and averaged 6.5 °C. There was 4.5 mm of rain during 6.3 hours. There was 1.5 hours of sunshine (10%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
February 28 » February 28 Incident: In Taiwan, civil disorder is put down with the loss of an estimated 30,000 civilians.
March 12 » Cold War: The Truman Doctrine is proclaimed to help stem the spread of Communism.
April 9 » United Nations Security Council Resolution 22 relating to Corfu Channel incident is adopted.
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.
October 20 » The House Un-American Activities Committee begins its investigation into Communist infiltration of the Hollywood film industry, resulting in a blacklist that prevents some from working in the industry for years.
December 23 » The transistor is first demonstrated at Bell Laboratories.
When copying data from this family tree, please include a reference to the origin: Wim Helsdingen, "Family tree Helsdingen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-helsdingen/I968.php : accessed February 5, 2026), "Christina Helsdingen (± 1912-1947)".
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