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.
June 6 » The Chicago "L" elevated rail system begins operation.
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.
November 8 » The New Orleans general strike begins, uniting black and white American trade unionists in a successful four-day general strike action for the first time.
December 17 » First issue of Vogue is published.
December 18 » Premiere performance of The Nutcracker by Pyotr Ilyich Tchaikovsky in Saint Petersburg, Russia.
Day of marriage May 15, 1918
The temperature on May 15, 1918 was between 4.5 °C and 20.7 °C and averaged 13.1 °C. There was 0.1 mm of rain. There was 5.8 hours of sunshine (37%). 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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 4 » The Finnish Declaration of Independence is recognized by Russia, Sweden, Germany and France.
January 25 » The Ukrainian People's Republic declares independence from Soviet Russia.
April 20 » Manfred von Richthofen, a.k.a. The Red Baron, shoots down his 79th and 80th victims, his final victories before his death the following day.
August 31 » World War I: Start of the Battle of Mont Saint-Quentin, a successful assault by the Australian Corps during the Hundred Days Offensive.
September 29 » The Hindenburg Line is broken by an Allied attack.
December 14 » Portuguese President Sidónio Pais is assassinated.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I45867.php : accessed March 11, 2026), "Leendert Koolen (1892-????)".
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