The temperature on April 18, 1936 was between 3.1 °C and 9.0 °C and averaged 5.8 °C. There was 0.9 mm of rain during 1.6 hours. There was 5.1 hours of sunshine (36%). The average windspeed was 6 Bft (strong wind) and was prevailing from the northwest. Source: KNMI
March 5 » First flight of K5054, the first prototype Supermarine Spitfire advanced monoplane fighter aircraft in the United Kingdom.
June 15 » First flight of the Vickers Wellington bomber.
June 28 » The Japanese puppet state of Mengjiang is formed in northern China.
August 31 » Radio Prague, now the official international broadcasting station of the Czech Republic, goes on the air.
October 1 » Spanish Civil War: Francisco Franco is named head of the Nationalist government of Spain.
October 9 » Boulder Dam (later Hoover Dam) begins to generate electricity and transmit it to Los Angeles.
Day of death April 14, 1964
The temperature on April 14, 1964 was between 5.6 °C and 12.3 °C and averaged 8.5 °C. There was 2.4 mm of rain during 1.6 hours. There was 5.2 hours of sunshine (38%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 25 » Blue Ribbon Sports, which would later become Nike, is founded by University of Oregon track and field athletes.
February 1 » The Beatles have their first number one hit in the United States with "I Want to Hold Your Hand".
October 14 » The Soviet Presidium and the Communist Party Central Committee each vote to accept Nikita Khrushchev's "voluntary" request to retire from his offices.
October 16 » China detonates its first nuclear weapon.
December 5 » Lloyd J. Old discovered the first linkage between the major histocompatibility complex (MHC) and disease—mouse leukemia—opening the way for the recognition of the importance of the MHC in the immune response.
December 22 » The first test flight of the SR-71 (Blackbird) takes place at Air Force Plant 42 in Palmdale, California, United States.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I8460.php : accessed January 17, 2026), "Arend Johannes Dreyer (1901-1964)".
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