The temperature on December 9, 1917 was between 0.3 °C and 5.4 °C and averaged 3.7 °C. There was 5.8 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
June 5 » World War I: Conscription begins in the United States as "Army registration day".
September 14 » The Russian Empire is formally replaced by the Russian Republic.
October 13 » The "Miracle of the Sun" is witnessed by an estimated 70,000 people in the Cova da Iria in Portugal.
October 31 » World War I: Battle of Beersheba: The "last successful cavalry charge in history".
December 6 » Halifax Explosion: A munitions explosion near Halifax, Nova Scotia kills more than 1,900 people in the largest artificial explosion up to that time.
December 20 » Cheka, the first Soviet secret police force, is founded.
Day of marriage December 21, 1944
The temperature on December 21, 1944 was between 2.6 °C and 5.5 °C and averaged 4.0 °C. There was 1.5 mm of rain during 1.7 hours. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. 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.
March 30 » Out of 795 Lancasters, Halifaxes and Mosquitos sent to attack Nuremberg, 95 bombers do not return, making it the largest RAF Bomber Command loss of the war.
July 9 » World War II: Continuation War: Finland wins the Battle of Tali-Ihantala, the largest battle ever fought in northern Europe. The Red Army withdraws its troops from Ihantala and digs into a defensive position, thus ending the Vyborg–Petrozavodsk Offensive.
August 20 » World War II: The Battle of Romania begins with a major Soviet Union offensive.
September 4 » World War II: Finland exits from the war with Soviet Union.
September 6 » World War II: Soviet forces capture the city of Tartu, Estonia.
September 28 » World War II: Soviet Army troops liberate Klooga concentration camp in Estonia.
Day of death July 30, 1999
The temperature on July 30, 1999 was between 14.3 °C and 29.6 °C and averaged 23.1 °C. There was 13.3 hours of sunshine (85%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
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/I110905.php : accessed October 12, 2026), "Jeltje Postma (1917-1999)".
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