The temperature on April 21, 1913 was between -1.5 °C and 13.6 °C and averaged 8.3 °C. There was 3.9 hours of sunshine (27%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
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.
January 3 » An Atlantic coast storm sets the lowest confirmed barometric pressure reading for a non-tropical system in the continental United States.
January 18 » First Balkan War: A Greek flotilla defeats the Ottoman Navy in the Naval Battle of Lemnos, securing the islands of the Northern Aegean Sea for Greece.
February 9 » A group of meteors is visible across much of the eastern seaboard of North and South America, leading astronomers to conclude the source had been a small, short-lived natural satellite of the Earth.
March 3 » Thousands of women march in the Woman Suffrage Procession in Washington, D.C.
March 21 » Over 360 are killed and 20,000 homes destroyed in the Great Dayton Flood in Dayton, Ohio.
August 28 » Queen Wilhelmina opens the Peace Palace in The Hague.
Day of marriage July 31, 1941
The temperature on July 31, 1941 was between 10.0 °C and 19.6 °C and averaged 14.8 °C. There was 4.6 hours of sunshine (30%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
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.
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.
January 22 » World War II: British and Commonwealth troops capture Tobruk from Italian forces during Operation Compass.
April 1 » Fântâna Albă massacre: Between 200 and 2,000 Romanian civilians are killed by Soviet Border Troops.
June 2 » World War II: German paratroopers murder Greek civilians in the villages of Kondomari and Alikianos.
July 20 » Soviet leader Joseph Stalin consolidates the Commissariats of Home Affairs and National Security to form the NKVD and names Lavrentiy Beria its chief.
August 22 » World War II: German troops begin the Siege of Leningrad.
December 23 » World War II: After 15 days of fighting, the Imperial Japanese Army occupies Wake Island.
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/I187418.php : accessed October 25, 2026), "Klaas Postma (1913-)".
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