The temperature on April 5, 1910 was between 2.5 °C and 13.9 °C and averaged 8.5 °C. There was 10.0 hours of sunshine (76%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 1 » Captain David Beatty is promoted to Rear admiral, and becomes the youngest admiral in the Royal Navy (except for Royal family members) since Horatio Nelson.
March 8 » French aviator Raymonde de Laroche becomes the first woman to receive a pilot's license.
June 19 » The first Father's Day is celebrated in Spokane, Washington.
September 20 » The ocean liner SSFrance, later known as the "Versailles of the Atlantic", is launched.
October 15 » Airship America is launched from New Jersey in the first attempt to cross the Atlantic by a powered aircraft.
November 23 » Johan Alfred Ander becomes the last person to be executed in Sweden.
Day of marriage August 21, 1941
The temperature on August 21, 1941 was between 10.2 °C and 18.8 °C and averaged 14.3 °C. There was 4.2 mm of rain during 0.7 hours. There was 7.6 hours of sunshine (53%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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 17 » Franco-Thai War: Vichy French forces inflict a decisive defeat over the Royal Thai Navy.
April 10 » World War II: The Axis powers establish the Independent State of Croatia.
May 1 » World War II: German forces launch a major attack during the siege of Tobruk.
August 15 » Corporal Josef Jakobs is executed by firing squad at the Tower of London at 07:12, making him the last person to be executed at the Tower for espionage.
October 30 » President Roosevelt approves $1 billion in Lend-Lease aid to the Allied nations.
December 28 » World War II: Operation Anthropoid, the plot to assassinate high-ranking Nazi officer Reinhard Heydrich, commences.
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/I503589.php : accessed February 2, 2026), "Johannes van der Kloo (1910-)".
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