The temperature on August 13, 1914 was between 10.7 °C and 23.0 °C and averaged 17.6 °C. There was 13.1 hours of sunshine (88%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 1 » The SPT Airboat Line becomes the world's first scheduled airline to use a winged aircraft.
July 18 » The U.S. Congress forms the Aviation Section, U.S. Signal Corps, giving official status to aircraft within the U.S. Army for the first time.
August 15 » World War I: The First Russian Army, led by Paul von Rennenkampf, enters East Prussia.
August 17 » World War I: Battle of Stallupönen: The German army of General Hermann von François defeats the Russian force commanded by Paul von Rennenkampf near modern-day Nesterov, Russia.
September 26 » The United States Federal Trade Commission is established by the Federal Trade Commission Act.
October 29 » Ottoman entry into World War I.
Day of marriage April 12, 1937
The temperature on April 12, 1937 was between 1.4 °C and 16.6 °C and averaged 9.3 °C. There was 10.4 hours of sunshine (76%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
January 25 » The Guiding Light debuts on NBC radio from Chicago. In 1952 it moves to CBS television, where it remains until September 18, 2009.
April 1 » Spanish Civil War: Jaén, Spain is bombed by German fascist forces, supporting Francoist Nationalists.
November 9 » Second Sino-Japanese War: The Chinese Army withdraws from the Battle of Shanghai.
December 16 » Theodore Cole and Ralph Roe attempt to escape from the American federal prison on Alcatraz Island in San Francisco Bay; neither is ever seen again.
December 21 » Snow White and the Seven Dwarfs, the world's first full-length animated feature, premieres at the Carthay Circle Theatre.
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: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I173962.php : accessed January 2, 2026), "Geert van der Heide (1914-)".
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