The temperature on September 16, 1921 was between 6.6 °C and 18.5 °C and averaged 12.0 °C. There was 6.3 hours of sunshine (50%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 20 » The first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty.
February 25 » Georgian capital Tbilisi falls to the invading Russian forces after heavy fighting and the Russians declare the Georgian Soviet Socialist Republic.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
September 21 » A storage silo in Oppau, Germany, explodes, killing 500–600 people.
October 13 » Soviet republics sign the Treaty of Kars to formalize the borders between Turkey and the South Caucasus states.
Day of marriage June 14, 1940
The temperature on June 14, 1940 was between 11.9 °C and 14.4 °C and averaged 13.2 °C. There was 10.5 mm of rain during 8.1 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 28 » World War II: Belgium surrenders to Nazi Germany to end the Battle of Belgium.
June 17 » World War II: The British Army's 11th Hussars assault and take Fort Capuzzo in Libya, Africa from Italian forces.
June 21 » World War II: Italy begins an unsuccessful invasion of France.
August 15 » An Italian submarine torpedoes and sinks the Greek cruiserElli at Tinos harbor during peacetime, marking the most serious Italian provocation prior to the outbreak of the Greco-Italian War in October.
August 18 » World War II: The Hardest Day air battle, part of the Battle of Britain. At that point, the largest aerial engagement in history with heavy losses sustained on both sides.
November 5 » World War II: The British armed merchant cruiser, HMSJervis Bay, is sunk by the German pocket battleship Admiral Scheer.
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/I306347.php : accessed February 25, 2026), "Jantje Visscher (1921-< 2020)".
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