The temperature on August 1, 1914 was between 13.0 °C and 24.7 °C and averaged 18.8 °C. There was 6.7 hours of sunshine (43%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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.
March 1 » The Republic of China joins the Universal Postal Union.
April 24 » The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
July 28 » In the culmination of the July Crisis, Austria-Hungary declares war on Serbia, igniting World War I.
August 1 » The German Empire declares war on the Russian Empire at the opening of World War I. The Swiss Army mobilizes because of World War I.
September 17 » World War I: The Race to the Sea begins.
November 16 » The Federal Reserve Bank of the United States officially opens.
Day of marriage May 7, 1938
The temperature on May 7, 1938 was between -0.2 °C and 10.0 °C and averaged 5.8 °C. There was 0.1 mm of rain. There was 2.2 hours of sunshine (14%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
May 26 » In the United States, the House Un-American Activities Committee begins its first session.
July 3 » United States President Franklin D. Roosevelt dedicates the Eternal Light Peace Memorial and lights the eternal flame at Gettysburg Battlefield.
July 20 » The United States Department of Justice files suit in New York City against the motion picture industry charging violations of the Sherman Antitrust Act in regards to the studio system. The case would eventually result in a break-up of the industry in 1948.
August 18 » The Thousand Islands Bridge, connecting New York, United States with Ontario, Canada over the Saint Lawrence River, is dedicated by U.S. President Franklin D. Roosevelt.
October 5 » In Nazi Germany, Jews' passports are invalidated.
November 16 » LSD is first synthesized by Albert Hofmann from ergotamine at the Sandoz Laboratories in Basel.
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/I165574.php : accessed October 25, 2026), "Sytske Zwanenburg (1914-)".
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