May 29 » N'Djamena is founded as Fort-Lamy by the French commander Émile Gentil.
June 17 » Boxer Rebellion: Western Allied and Japanese forces capture the Taku Forts in Tianjin, China.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
July 9 » The Federation of Australia is given royal assent.
August 3 » The Firestone Tire and Rubber Company is founded.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Christening day March 21, 1920
The temperature on March 21, 1920 was between 0.3 °C and 13.6 °C and averaged 7.0 °C. There was 0.9 hours of sunshine (7%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
March 13 » The Kapp Putsch briefly ousts the Weimar Republic government from Berlin.
March 14 » In the second of the 1920 Schleswig plebiscites, about 80% of the population in Zone II votes to remain part of Weimar Germany.
June 11 » During the U.S. Republican National Convention in Chicago, U.S. Republican Party leaders gathered in a room at the Blackstone Hotel to come to a consensus on their candidate for the U.S. presidential election, leading the Associated Press to coin the political phrase "smoke-filled room".
July 12 » The Soviet–Lithuanian Peace Treaty is signed, by which Soviet Russia recognizes the independence of Lithuania.
September 7 » Two newly purchased Savoia flying boats crash in the Swiss Alps en route to Finland where they would serve with the Finnish Air Force, killing both crews.
October 10 » The Carinthian plebiscite determines that the larger part of the Duchy of Carinthia should remain part of Austria.
Day of death April 17, 1990
The temperature on April 17, 1990 was between 3.3 °C and 10.6 °C and averaged 6.4 °C. There was 2.4 mm of rain during 1.6 hours. There was 8.5 hours of sunshine (61%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 15 » Mikhail Gorbachev is elected as the first President of the Soviet Union.
May 18 » In France, a modified TGV train achieves a new rail world speed record of 515.3km/h (320.2mph).
June 10 » British Airways Flight 5390 lands safely at Southampton Airport after a blowout in the cockpit causes the captain to be partially sucked from the cockpit. There are no fatalities.
September 5 » Sri Lankan Civil War: Sri Lankan Army soldiers slaughter 158 civilians.
November 14 » After German reunification, the Federal Republic of Germany and Poland sign a treaty confirming the Oder–Neisse line as the border between Germany and Poland.
December 22 » Lech Wałęsa is elected President of Poland.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I65340.php : accessed December 26, 2025), "Wytske Wijnalda (1900-1990)".
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