The temperature on June 28, 1943 was between 11.8 °C and 16.0 °C and averaged 13.7 °C. There was 0.6 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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 22 » World War II: The entire village of Khatyn (in what is the present-day Republic of Belarus) is burnt alive by Schutzmannschaft Battalion 118.
June 20 » World War II: The Royal Air Force launches Operation Bellicose, the first shuttle bombing raid of the war. Lancaster bombers damage the V-2 rocket production facilities at the Zeppelin Works while en route to an air base in Algeria.
June 25 » The left-wing German Jewish exile Arthur Goldstein is murdered in Auschwitz.
August 1 » World War II: Operation Tidal Wave also known as "Black Sunday", was a failed American attempt to destroy Romanian oil fields.
October 1 » World War II: After the Four Days of Naples, Allied troops enter the city.
October 13 » World War II: Marshal Pietro Badoglio announces that Italy has officially declared war on Germany.
Day of death July 10, 1957
The temperature on July 10, 1957 was between 12.6 °C and 20.2 °C and averaged 16.0 °C. There was 1.3 mm of rain during 1.1 hours. There was 2.8 hours of sunshine (17%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
February 18 » Kenyan rebel leader Dedan Kimathi is executed by the British colonial government.
March 8 » The 1957 Georgia Memorial to Congress, which petitions the U.S. Congress to declare the ratification of the 14th and 15th Amendments to the U.S. Constitution null and void, is adopted by the U.S. state of Georgia.
April 30 » Supplementary Convention on the Abolition of Slavery entered into force.
September 19 » Plumbbob Rainier becomes the first nuclear explosion to be entirely contained underground, producing no fallout.
November 7 » Cold War: The Gaither Report calls for more American missiles and fallout shelters.
November 8 » Pan Am Flight 7 disappears between San Francisco and Honolulu. Wreckage and bodies are discovered a week later.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I801.php : accessed January 19, 2026), "Johannes Wilhelmus Nicolaas Josephus Opperman (1943-1957)".
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