The temperature on March 31, 1921 was between 5.0 °C and 12.4 °C and averaged 8.2 °C. There was 0.5 mm of rain. There was 1.4 hours of sunshine (11%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
February 12 » Bolsheviks launch a revolt in Georgia as a preliminary to the Red Army invasion of Georgia.
March 21 » The New Economic Policy is implemented by the Bolshevik Party in response to the economic failure as a result of war communism.
March 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
April 11 » Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
May 3 » West Virginia becomes the first state to legislate a broad sales tax, but does not implement it until a number of years later due to enforcement issues.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
Day of marriage April 8, 1944
The temperature on April 8, 1944 was between 0.9 °C and 15.7 °C and averaged 9.9 °C. There was 8.7 hours of sunshine (65%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. 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 9 » World War II: Soviet Army planes attack Tallinn, Estonia.
April 14 » Bombay explosion: A massive explosion in Bombay harbor kills 300 and causes economic damage valued then at 20million pounds.
August 7 » IBM dedicates the first program-controlled calculator, the Automatic Sequence Controlled Calculator (known best as the Harvard Mark I).
August 26 » World War II: Charles de Gaulle enters Paris.
September 5 » Belgium, Netherlands and Luxembourg constitute Benelux.
November 12 » World War II: The Royal Air Force launches 29 Avro Lancaster bombers, which sink the German battleship Tirpitz, with 12,000lb Tallboy bombs off Tromsø, Norway.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I274693.php : accessed February 25, 2026), "Jacob Slomp (1921-< 2020)".
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