The temperature on July 20, 1947 was between 13.0 °C and 25.3 °C and averaged 18.6 °C. There was 12.1 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
May 3 » New post-war Japanese constitution goes into effect.
May 22 » Cold War: The Truman Doctrine goes into effect, aiding Turkey and Greece.
October 22 » The Kashmir conflict between India and Pakistan begins, having started just after the partition of India.
November 29 » First Indochina War: French forces carry out a massacre at Mỹ Trạch, Vietnam.
December 17 » First flight of the Boeing B-47 Stratojet strategic bomber.
Day of death April 13, 1961
The temperature on April 13, 1961 was between 9.8 °C and 16.9 °C and averaged 13.3 °C. There was 0.5 mm of rain during 1.1 hours. There was 1.4 hours of sunshine (10%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
March 9 » Sputnik 9 successfully launches, carrying a dog and a human dummy, and demonstrating that the Soviet Union was ready to begin human spaceflight.
April 25 » Robert Noyce is granted a patent for an integrated circuit.
July 20 » French military forces break the Tunisian siege of Bizerte.
August 10 » Vietnam War: The U.S. Army begins Operation Ranch Hand, spraying an estimated 20million US gallons (76,000m) of defoliants and herbicides over rural areas of South Vietnam in an attempt to deprive the Viet Cong of food and vegetation cover.
August 21 » American country music singer Patsy Cline returns to record producer Owen Bradley's studio in Nashville, Tennessee to record her vocals to Willie Nelson's "Crazy", which would become her signature song.
October 30 » The Soviet Union detonates the Tsar Bomba, the most powerful explosive device ever detonated.
When copying data from this family tree, please include a reference to the origin: Peter Verbist, "Family tree Verbist - van Leeuwen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-verbist-van-leeuwen/I807.php : accessed May 13, 2025), "François Edmond Alice Verbist (1947-1961)".
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