January 12 » The National Trust is founded in the United Kingdom.
March 15 » Heian Shrine is founded.
April 6 » Oscar Wilde is arrested in the Cadogan Hotel, London, after losing a libel case against the Marquess of Queensberry.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
September 3 » John Brallier becomes the first openly professional American football player, when he was paid US$10 by David Berry, to play for the Latrobe Athletic Association in a 12-0 win over the Jeanette Athletic Association.
October 4 » Horace Rawlins wins the first U.S. Open Men's Golf Championship.
Day of marriage October 23, 1915
The temperature on October 23, 1915 was between -0.8 °C and 11.1 °C and averaged 5.9 °C. There was 0.1 mm of rain. There was 3.7 hours of sunshine (36%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. 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.
February 12 » In Washington, D.C., the first stone of the Lincoln Memorial is put into place.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
May 9 » World War I: Second Battle of Artois between German and French forces.
June 29 » The North Saskatchewan River flood of 1915 is the worst flood in Edmonton history.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 6 » World War I: Battle of Sari Bair: The Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay.
Day of death April 10, 1961
The temperature on April 10, 1961 was between 4.7 °C and 16.1 °C and averaged 9.9 °C. There was 11.2 hours of sunshine (83%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 17 » U.S. President Dwight D. Eisenhower delivers a televised farewell address to the nation three days before leaving office, in which he warns against the accumulation of power by the "military–industrial complex" as well as the dangers of massive spending, especially deficit spending.
February 16 » Explorer program: Explorer 9 (S-56a) is launched.
March 2 » John F. Kennedy announces the creation of the Peace Corps in a nationally televised broadcast.
June 23 » The Antarctic Treaty System, which sets aside Antarctica as a scientific preserve and limits military activity on the continent, its islands and ice shelves, comes into force.
December 2 » In a nationally broadcast speech, Cuban leader Fidel Castro declares that he is a Marxist–Leninist and that Cuba is going to adopt Communism.
December 31 » RTÉ, Ireland's state broadcaster, launches its first national television service.
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/I197009.php : accessed October 23, 2026), "Sytske Vaartjes (1895-1961)".
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