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: Serbia declares war on Germany; Austria declares war on Russia.
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.
August 23 » World War I: The British Expeditionary Force and the French Fifth Army begin their Great Retreat before the German Army.
August 27 » World War I: Battle of Étreux: A British rearguard action by the Royal Munster Fusiliers during the Great Retreat.
September 11 » World War I: Australia invades German New Guinea, defeating a German contingent at the Battle of Bita Paka.
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
February 16 » Wallace H. Carothers receives a United States patent for nylon.
May 27 » In California, the Golden Gate Bridge opens to pedestrian traffic, creating a vital link between San Francisco and Marin County, California.
July 24 » Alabama drops rape charges against the "Scottsboro Boys".
August 1 » Josip Broz Tito reads the resolution "Manifesto of constitutional congress of KPH" to the constitutive congress of KPH (Croatian Communist Party) in woods near Samobor.
August 13 » Second Sino-Japanese War: The Battle of Shanghai begins.
December 29 » The Irish Free State is replaced by a new state called Ireland with the adoption of a new constitution.
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
March 29 » Malagasy Uprising against French colonial rule in Madagascar.
August 15 » India gains Independence from British rule after near 190 years of British company and crown rule, and joins the Commonwealth of Nations.
September 18 » The National Security Council and the Central Intelligence Agency are established in the United States by the National Security Act. It also establishes the Air Force as an equal partner of the Army and Navy.
October 1 » The North American F-86 Sabre flies for the first time.
November 25 » Red Scare: The "Hollywood Ten" are blacklisted by Hollywood movie studios.
December 23 » The transistor is first demonstrated at Bell Laboratories.
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 18, 2026), "Jan Sytsma (1914-1947)".
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