The temperature on April 17, 1941 was between -1.1 °C and 15.0 °C and averaged 8.4 °C. There was 10.5 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
April 16 » World War II: The Nazi-affiliated Ustaše is put in charge of the Independent State of Croatia by the Axis powers after Operation 25 is effected.
June 5 » World War II: Four thousand Chongqing residents are asphyxiated in a bomb shelter during the Bombing of Chongqing.
July 11 » The Northern Rhodesian Labour Party holds its first congress in Nkana.
November 26 » World War II: Japan's 1st Air Fleet departs the Kuril Islands to strike Pearl Harbor on December 7, 1941.
December 25 » World War II: Battle of Hong Kong ends, beginning the Japanese occupation of Hong Kong.
December 28 » World War II: Operation Anthropoid, the plot to assassinate high-ranking Nazi officer Reinhard Heydrich, commences.
Day of marriage January 10, 1969
The temperature on January 10, 1969 was between -1.0 °C and 1.6 °C and averaged 0.3 °C. There was 0.6 hours of sunshine (7%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
June 3 » Melbourne–Evans collision: off the coast of South Vietnam, the Australian aircraft carrier HMASMelbourne cuts the U.S. Navy destroyer USSFrank E. Evans in half.
June 22 » The Cuyahoga River catches fire in Cleveland, Ohio, drawing national attention to water pollution, and spurring the passing of the Clean Water Act and the creation of the Environmental Protection Agency.
July 19 » Chappaquiddick incident: U.S. Senator Ted Kennedy crashes his car into a tidal pond at Chappaquiddick Island, Massachusetts, killing his passenger Mary Jo Kopechne.
November 13 » Vietnam War: Anti-war protesters in Washington, D.C. stage a symbolic March Against Death.
November 14 » Apollo program: NASA launches Apollo 12, the second crewed mission to the surface of the Moon.
Day of death October 17, 1970
The temperature on October 17, 1970 was between 2.6 °C and 15.5 °C and averaged 7.7 °C. There was 8.1 hours of sunshine (76%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south east. Source: KNMI
When copying data from this family tree, please include a reference to the origin: John en Jannie Anker, "Family tree Spijkerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-spijkerman/I406.php : accessed January 10, 2026), "Willem Jan Spijkerman (1941-1970)".
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