The temperature on May 21, 1942 was between 8.0 °C and 15.2 °C and averaged 12.5 °C. There was 1.4 mm of rain during 3.3 hours. There was 1.5 hours of sunshine (9%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
January 20 » World War II: At the Wannsee Conference held in the Berlin suburb of Wannsee, senior Nazi German officials discuss the implementation of the "Final Solution to the Jewish question".
January 26 » World War II: The first United States forces arrive in Europe landing in Northern Ireland.
February 2 » The Osvald Group is responsible for the first, active event of anti-Nazi resistance in Norway, to protest the inauguration of Vidkun Quisling.
May 4 » World War II: The Battle of the Coral Sea begins with an attack by aircraft from the United States aircraft carrier USSYorktown on Japanese naval forces at Tulagi Island in the Solomon Islands. The Japanese forces had invaded Tulagi the day before.
May 26 » World War II: The Battle of Gazala takes place.
July 10 » World War II: An American pilot spots a downed, intact Mitsubishi A6M Zero on Akutan Island (the "Akutan Zero") that the US Navy uses to learn the aircraft's flight characteristics.
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/I418182.php : accessed March 4, 2026), "Martinus Carolus Cornelis van Keulen (± 1914-< 2014)".
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