The temperature on May 17, 1914 was between 7.6 °C and 20.2 °C and averaged 14.5 °C. There was 14.1 hours of sunshine (89%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-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.
August 6 » World War I: First Battle of the Atlantic: Two days after the United Kingdom had declared war on Germany over the German invasion of Belgium, ten German U-boats leave their base in Heligoland to attack Royal Navy warships in the North Sea.
August 23 » World War I: The British Expeditionary Force and the French Fifth Army begin their Great Retreat before the German Army.
August 29 » World War I: Start of the Battle of St. Quentin in which the French Fifth Army counter-attacked the invading Germans at Saint-Quentin, Aisne.
September 3 » French composer Albéric Magnard is killed defending his estate against invading German soldiers.
September 18 » The Irish Home Rule Act becomes law, but is delayed until after World War I.
November 7 » The German colony of Kiaochow Bay and its centre at Tsingtao are captured by Japanese forces.
Day of marriage September 30, 1937
The temperature on September 30, 1937 was between 5.8 °C and 16.7 °C and averaged 11.2 °C. There was 8.7 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
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.
March 21 » Ponce massacre: Nineteen people in Ponce, Puerto Rico are gunned down by police acting on orders of the US-appointed Governor, Blanton C. Winship.
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.
September 21 » J. R. R. Tolkien's The Hobbit is published.
Day of death August 4, 1947
The temperature on August 4, 1947 was between 11.2 °C and 26.4 °C and averaged 19.7 °C. There was 0.1 mm of rain during 0.1 hours. There was 9.3 hours of sunshine (61%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the ??. Source: KNMI
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/I122365.php : accessed October 24, 2026), "Jan Sytsma (1914-1947)".
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