The temperature on January 13, 1937 was between 0.3 °C and 2.8 °C and averaged 2.0 °C. There was 8.4 mm of rain during 12.0 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
April 12 » Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.
June 14 » Pennsylvania becomes the first (and only) state of the United States to celebrate Flag Day officially as a state holiday.
September 5 » Spanish Civil War: Llanes falls to the Nationalists following a one-day siege.
September 22 » Spanish Civil War: Peña Blanca is taken, ending the Battle of El Mazuco.
October 11 » The Duke and Duchess of Windsor tour Nazi Germany for 12 days and meet Adolf Hitler on the 22nd.
December 9 » Second Sino-Japanese War: Battle of Nanking: Japanese troops under the command of Lt. Gen. Asaka Yasuhiko launch an assault on the Chinese city of Nanjing (Nanking).
Day of marriage May 16, 1958
The temperature on May 16, 1958 was between 6.2 °C and 10.5 °C and averaged 8.5 °C. There was 24.7 mm of rain during 15.9 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
April 13 » American pianist Van Cliburn is awarded first prize at the inaugural International Tchaikovsky Competition in Moscow.
May 13 » Ben Carlin becomes the first (and only) person to circumnavigate the world by amphibious vehicle, having travelled over 17,000 kilometres (11,000mi) by sea and 62,000 kilometres (39,000mi) by land during a ten-year journey.
May 27 » First flight of the McDonnell Douglas F-4 Phantom II.
July 1 » The Canadian Broadcasting Corporation links television broadcasting across Canada via microwave.
July 29 » U.S. President Dwight D. Eisenhower signs into law the National Aeronautics and Space Act, which creates the National Aeronautics and Space Administration (NASA).
September 1 » Iceland expands its fishing zone, putting it into conflict with the United Kingdom, beginning the Cod Wars.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I86404.php : accessed February 20, 2026), "Geesje Gritter (1937-2020)".
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