March 1 » Henri Becquerel discovers radioactive decay.
May 26 » Charles Dow publishes the first edition of the Dow Jones Industrial Average.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
August 16 » Skookum Jim Mason, George Carmack and Dawson Charlie discover gold in a tributary of the Klondike River in Canada, setting off the Klondike Gold Rush.
August 17 » Bridget Driscoll became the first recorded case of a pedestrian killed in a collision with a motor car in the United Kingdom.
November 1 » A picture showing the bare breasts of a woman appears in National Geographic magazine for the first time.
Day of marriage December 16, 1920
The temperature on December 16, 1920 was between -11.6 °C and -5.3 °C and averaged -8.0 °C. There was 0.3 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. 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 19 » The American Civil Liberties Union (ACLU) is founded.
January 23 » The Netherlands refuses to surrender the exiled Kaiser Wilhelm II of Germany to the Allies.
May 2 » The first game of the Negro National League baseball is played in Indianapolis.
August 31 » Polish–Soviet War: A decisive Polish victory in the Battle of Komarów.
November 7 » Patriarch Tikhon of Moscow issues a decree that leads to the formation of the Russian Orthodox Church Outside Russia.
December 22 » The GOELRO economic development plan is adopted by the 8th Congress of Soviets of the Russian SFSR.
Day of death November 17, 1944
The temperature on November 17, 1944 was between 0.3 °C and 8.5 °C and averaged 3.7 °C. There was 30.5 mm of rain during 11.5 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 14 » Bombay explosion: A massive explosion in Bombay harbor kills 300 and causes economic damage valued then at 20million pounds.
June 26 » World War II: The Battle of Osuchy in Osuchy, Poland, one of the largest battles between Nazi Germany and Polish resistance forces, ends with the defeat of the latter.
August 7 » IBM dedicates the first program-controlled calculator, the Automatic Sequence Controlled Calculator (known best as the Harvard Mark I).
October 21 » World War II: The first kamikaze attack damages HMASAustralia as the Battle of Leyte Gulf begins.
December 31 » World War II: Hungary declares war on Nazi Germany.
December 31 » World War II: Operation Nordwind, the last major Wehrmacht offensive on the Western Front begins.
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/I108291.php : accessed October 16, 2026), "Aaltje van der Heide (1896-1944)".
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