In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
February 29 » St. Petersburg, Florida is incorporated.
May 28 » In San Francisco, John Muir organizes the Sierra Club.
June 7 » Homer Plessy is arrested for refusing to leave his seat in the "whites-only" car of a train; he lost the resulting court case, Plessy v. Ferguson.
June 11 » The Limelight Department, one of the world's first film studios, is officially established in Melbourne, Australia.
July 4 » Western Samoa changes the International Date Line, causing Monday (July 4) to occur twice, resulting in a year with 367 days.
November 12 » Pudge Heffelfinger becomes the first professional American football player on record, participating in his first paid game for the Allegheny Athletic Association.
Day of marriage May 13, 1915
The temperature on May 13, 1915 was between 6.4 °C and 12.2 °C and averaged 8.1 °C. There was 23.0 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-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 21 » Kiwanis International is founded in Detroit.
March 26 » The Vancouver Millionaires win the 1915 Stanley Cup Finals, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association.
April 25 » World War I: The Battle of Gallipoli begins: The invasion of the Turkish Gallipoli Peninsula by British, French, Indian, Newfoundland, Australian and New Zealand troops, begins with landings at Anzac Cove and Cape Helles.
May 17 » The last British Liberal Party government (led by H. H. Asquith) falls.
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 15 » A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
Day of death January 12, 1981
The temperature on January 12, 1981 was between -3.5 °C and 1.3 °C and averaged -0.3 °C. There was 10.0 mm of rain during 7.0 hours. The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
March 5 » The ZX81, a pioneering British home computer, is launched by Sinclair Research and would go on to sell over 1⁄2 million units around the world.
September 1 » A coup d'état in the Central African Republic overthrows President David Dacko.
September 26 » Nolan Ryan sets a Major League record by throwing his fifth no-hitter.
October 9 » President François Mitterrand abolishes capital punishment in France.
November 11 » Antigua and Barbuda joins the United Nations.
December 14 » Arab–Israeli conflict: Israel's Knesset ratifies the Golan Heights Law, extending Israeli law to the occupied Golan Heights.
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/I112150.php : accessed October 6, 2026), "Theunis Koopstra (1892-1981)".
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