February 4 » The Philippine–American War begins with the Battle of Manila.
May 30 » Pearl Hart, a female outlaw of the Old West, robs a stage coach 30 miles southeast of Globe, Arizona.
June 12 » New Richmond tornado: The eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
November 28 » The Second Boer War: a British column is engaged by Boer forces at the Battle of Modder River; although the Boers withdraw, the British suffer heavy casualties.
December 11 » Second Boer War: In the Battle of Magersfontein the Boers commanded by general Piet Cronjé inflict a defeat on the forces of the British Empire commanded by Lord Methuen trying to relieve the Siege of Kimberley.
Day of marriage August 13, 1919
The temperature on August 13, 1919 was between 9.9 °C and 25.1 °C and averaged 17.6 °C. There was 10.7 hours of sunshine (72%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
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 7 » Montenegrin guerrilla fighters rebel against the planned annexation of Montenegro by Serbia, but fail.
March 2 » The first Communist International meets in Moscow.
March 23 » In Milan, Italy, Benito Mussolini founds his Fascist political movement.
June 21 » Admiral Ludwig von Reuter scuttles the German fleet at Scapa Flow, Orkney. The nine sailors killed are the last casualties of World War I.
July 11 » The eight-hour day and free Sunday become law for workers in the Netherlands.
September 18 » Fritz Pollard becomes the first African American to play professional football for a major team, the Akron Pros.
Day of death December 21, 1986
The temperature on December 21, 1986 was between -1.0 °C and 6.1 °C and averaged 2.2 °C. There was 6.9 mm of rain during 4.3 hours. There was 1.0 hours of sunshine (13%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 19 » The first IBM PC computer virus is released into the wild. A boot sector virus dubbed (c)Brain, it was created by the Farooq Alvi Brothers in Lahore, Pakistan, reportedly to deter unauthorized copying of the software they had written.
March 21 » Debi Thomas became the first African American to win the World Figure Skating Championships
April 28 » High levels of radiation resulting from the Chernobyl disaster are detected at a nuclear power plant in Sweden, leading Soviet authorities to publicly announce the accident.
April 28 » The United States Navy aircraft carrier USSEnterprise becomes the first nuclear-powered aircraft carrier to transit the Suez Canal, navigating from the Red Sea to the Mediterranean Sea to relieve the USSCoral Sea.
June 4 » Jonathan Pollard pleads guilty to espionage for selling top secret United States military intelligence to Israel.
September 6 » In Istanbul, two terrorists from Abu Nidal's organization kill 22 and wound six congregants inside the Neve Shalom Synagogue during Shabbat services.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I14910.php : accessed February 16, 2026), "Jansje Kools (1899-1986)".
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