The temperature on February 22, 1920 was between -1.0 °C and 7.5 °C and averaged 3.8 °C. There was 8.2 hours of sunshine (79%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-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.
April 23 » The Grand National Assembly of Turkey (TBMM) is founded in Ankara. The assembly denounces the government of Sultan Mehmed VI and announces the preparation of a temporary constitution.
May 7 » Treaty of Moscow: Soviet Russia recognizes the independence of the Democratic Republic of Georgia only to invade the country six months later.
July 29 » Construction of the Link River Dam begins as part of the Klamath Reclamation Project.
August 10 » World War I: Ottoman sultan Mehmed VI's representatives sign the Treaty of Sèvres that divides up the Ottoman Empire between the Allies.
August 13 » Polish–Soviet War: The Battle of Warsaw begins and will last till August 25. The Red Army is defeated.
August 20 » The National Football League is organized as the American Professional Football Conference in Canton, Ohio
Day of marriage April 11, 1942
The temperature on April 11, 1942 was between 4.3 °C and 15.7 °C and averaged 9.7 °C. There was 11.9 hours of sunshine (88%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. 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.
May 31 » World War II: Imperial Japanese Navy midget submarines begin a series of attacks on Sydney, Australia.
June 22 » The Pledge of Allegiance is formally adopted by US Congress.
August 23 » World War II: Beginning of the Battle of Stalingrad.
October 3 » A German V-2 rocket reaches a record 85 km (46 nm) in altitude.
November 28 » In Boston, Massachusetts, a fire in the Cocoanut Grove nightclub kills 492 people.
December 4 » World War II: Carlson's patrol during the Guadalcanal Campaign ends.
Day of death July 12, 1985
The temperature on July 12, 1985 was between 14.6 °C and 23.6 °C and averaged 18.6 °C. There was 6.4 hours of sunshine (39%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
May 5 » Ronald Reagan visits the military cemetery at Bitburg and the site of the Bergen-Belsen concentration camp, where he makes a speech.
June 17 » Space Shuttle program: STS-51-G mission: Space Shuttle Discovery launches carrying Sultan bin Salman bin Abdulaziz Al Saud, the first Arab and first Muslim in space, as a payload specialist.
August 27 » The Nigerian government is peacefully overthrown by Army Chief of Staff Major General Ibrahim Babangida.
September 4 » The discovery of Buckminsterfullerene, the first fullerene molecule of carbon.
October 10 » US Navy aircraft intercept an Egyptian airliner carrying the perpetrators of the Achille Lauro hijacking, and force it to land in Italy.
November 19 » Police in Baling, Malaysia, lay siege to houses occupied by an Islamic sect of about 400 people led by Ibrahim Mahmud.
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/I145048.php : accessed December 30, 2025), "Pieter Heidstra (1920-1985)".
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