The temperature on May 12, 1937 was between 9.6 °C and 18.9 °C and averaged 13.7 °C. There was 1.0 mm of rain during 0.3 hours. There was 5.9 hours of sunshine (38%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 23 » The trial of the anti-Soviet Trotskyist center sees seventeen mid-level Communists accused of sympathizing with Leon Trotsky and plotting to overthrow Joseph Stalin's regime.
April 12 » Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.
April 26 » Spanish Civil War: Guernica, Spain, is bombed by German Luftwaffe.
May 6 » Hindenburg disaster: The German zeppelin Hindenburg catches fire and is destroyed within a minute while attempting to dock at Lakehurst, New Jersey. Thirty-six people are killed.
May 7 » Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrives in Spain to assist Francisco Franco's forces.
July 6 » Spanish Civil War: Battle of Brunete: The battle begins with Spanish Republican troops going on the offensive against the Nationalists to relieve pressure on Madrid.
When copying data from this family tree, please include a reference to the origin: Lucas van Heeren, "Genealogy Van Ham", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-van-ham/I10634.php : accessed May 27, 2024), "Willem Frederik HOEK (1907-)".
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