The temperature on April 11, 1939 was between 7.2 °C and 20.2 °C and averaged 13.9 °C. There was 11.3 hours of sunshine (83%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
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.
March 14 » Slovakia declares independence under German pressure.
March 28 » Spanish Civil War: Generalissimo Francisco Franco conquers Madrid after a three-year siege.
March 30 » The Heinkel He 100 fighter sets a world airspeed record of 463mph (745km/h).
June 12 » Shooting begins on Paramount Pictures' Dr. Cyclops, the first horror film photographed in three-strip Technicolor.
September 10 » World War II: The submarine HMSOxley is mistakenly sunk by the submarine HMSTriton near Norway and becomes the Royal Navy's first loss of a submarine in the war.
September 14 » World War II: The Estonian military boards the Polish submarine ORPOrzeł in Tallinn, sparking a diplomatic incident that the Soviet Union will later use to justify the annexation of Estonia.
Day of death July 23, 1942
The temperature on July 23, 1942 was between 13.0 °C and 17.4 °C and averaged 15.3 °C. There was 6.1 mm of rain during 3.7 hours. There was 0.6 hours of sunshine (4%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west. 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.
April 18 » World War II: The Doolittle Raid on Japan: Tokyo, Yokohama, Kobe and Nagoya are bombed.
October 28 » The Alaska Highway first connects Alaska to the North American railway network at Dawson Creek in Canada.
October 29 » The Holocaust: In the United Kingdom, leading clergymen and political figures hold a public meeting to register outrage over Nazi Germany's persecution of Jews.
November 3 » World War II: The Koli Point action begins during the Guadalcanal Campaign and ends on November 12.
November 11 » World War II: France's zone libre is occupied by German forces in Case Anton.
November 21 » The completion of the Alaska Highway (also known as the Alcan Highway) is celebrated (however, the highway is not usable by standard road vehicles until 1943).
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/I444591.php : accessed February 27, 2026), "Jan Blaak (1939-1942)".
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