The temperature on September 25, 1937 was between 6.3 °C and 13.9 °C and averaged 11.4 °C. There was 3.2 mm of rain during 2.6 hours. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
April 1 » Spanish Civil War: Jaén, Spain is bombed by German fascist forces, supporting Francoist Nationalists.
April 26 » Spanish Civil War: Guernica, Spain, is bombed by German Luftwaffe.
June 15 » A German expedition led by Karl Wien loses sixteen members in an avalanche on Nanga Parbat. It is the worst single disaster to occur on an 8000m peak.
June 30 » The world's first emergency telephone number, 999, is introduced in London.
August 14 » The beginning of air-to-air combat of the Second Sino-Japanese War and World War II in general, when six Japanese bombers are shot down by Chinese fighters while raiding Chinese air bases.
December 22 » The Lincoln Tunnel opens to traffic in New York City.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I4286.php : accessed December 25, 2025), "Helma Heringa (1912-)".
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