The temperature on August 21, 1917 was between 7.6 °C and 21.3 °C and averaged 14.7 °C. There was 11.1 hours of sunshine (77%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
April 2 » World War I: United States President Woodrow Wilson asks the U.S. Congress for a declaration of war on Germany.
May 18 » World War I: The Selective Service Act of 1917 is passed, giving the President of the United States the power of conscription.
September 26 » World War I: The Battle of Polygon Wood begins.
October 25 » Old Style date of the October Revolution in Russia.
November 2 » The Military Revolutionary Committee of the Petrograd Soviet, in charge of preparation and carrying out the Russian Revolution, holds its first meeting.
November 26 » The Manchester Guardian publishes the 1916 secret Sykes-Picot Agreement between the United Kingdom and France.
Day of marriage May 18, 1940
The temperature on May 18, 1940 was between 8.5 °C and 19.2 °C and averaged 13.4 °C. There was 9.9 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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: Norwegian, French, Polish and British forces recapture Narvik in Norway. This is the first allied infantry victory of the War.
August 26 » Chad becomes the first French colony to join the Allies under the administration of Félix Éboué, France's first black colonial governor.
October 17 » The body of Communist propagandist Willi Münzenberg found in South France, starting a never-resolved mystery.
November 5 » World War II: The British armed merchant cruiser, HMSJervis Bay, is sunk by the German pocket battleship Admiral Scheer.
November 11 » World War II: In the Battle of Taranto, the Royal Navy launches the first all-aircraft ship-to-ship naval attack in history.
November 23 » World War II: Romania becomes a signatory of the Tripartite Pact, officially joining the Axis powers.
Day of death December 20, 2004
The temperature on December 20, 2004 was between -5.0 °C and 4.0 °C and averaged -1.7 °C. There was 6.6 hours of sunshine (85%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Tuesday, May 27, 2003 to Friday, July 7, 2006 the cabinet Balkenende II, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
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/I121956.php : accessed February 18, 2026), "Leendert Adema (1917-2004)".
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