The temperature on July 25, 1914 was between 9.9 °C and 15.9 °C and averaged 13.3 °C. There was 1.9 mm of rain. There was 1.4 hours of sunshine (9%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-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.
May 30 » The new, and then the largest, Cunard ocean liner RMSAquitania, 45,647 tons, sets sails on her maiden voyage from Liverpool, England, to New York City.
August 20 » World War I: Brussels is captured during the German invasion of Belgium.
August 24 » World War I: The Battle of Cer ends as the first Allied victory in the war.
November 26 » HMS Bulwark was destroyed by a large internal explosion with the loss of 741 men near Sheerness.
December 8 » World War I: A squadron of Britain's Royal Navy defeats the Imperial German East Asia Squadron in the Battle of the Falkland Islands in the South Atlantic.
December 24 » World War I: The "Christmas truce" begins.
Day of marriage April 12, 1940
The temperature on April 12, 1940 was between -0.5 °C and 9.0 °C and averaged 4.3 °C. There was 4.4 mm of rain during 2.3 hours. There was 1.1 hours of sunshine (8%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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.
February 27 » Martin Kamen and Sam Ruben discover carbon-14.
February 28 » Basketball is televised for the first time (Fordham University vs. the University of Pittsburgh in Madison Square Garden).
February 29 » Finland initiates Winter War peace negotiations.
May 5 » World War II: Norwegian Campaign: Norwegian squads in Hegra Fortress and Vinjesvingen capitulate to German forces after all other Norwegian forces in southern Norway had laid down their arms.
June 3 » World War II: The Luftwaffe bombs Paris.
September 12 » An explosion at the Hercules Powder Company plant in Kenvil, New Jersey kills 51 people and injures over 200.
Day of death March 13, 1960
The temperature on March 13, 1960 was between 3.1 °C and 16.2 °C and averaged 9.0 °C. There was 5.8 hours of sunshine (50%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 1 » Cameroon achieves independence from France and the United Kingdom.
January 19 » Japan and the United States sign the US–Japan Mutual Security Treaty
March 22 » Arthur Leonard Schawlow and Charles Hard Townes receive the first patent for a laser.
April 4 » France agrees to grant independence to the Mali Federation, a union of Senegal and French Sudan.
July 11 » To Kill a Mockingbird by Harper Lee is first published, in the United States.
December 17 » Troops loyal to Emperor Haile Selassie in Ethiopia crush the coup that began December 13, returning power to their leader upon his return from Brazil. Haile Selassie absolves his son of any guilt.
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/I201557.php : accessed February 24, 2026), "Hindrik Leeuwinga (1914-1960)".
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