January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 23 » Second Boer War: During the Battle of the Tugela Heights, the first British attempt to take Hart's Hill fails.
March 7 » The German liner SSKaiser Wilhelm der Grosse becomes the first ship to send wireless signals to shore.
April 14 » The Exposition Universelle begins.
May 17 » The children's novel The Wonderful Wizard of Oz, by L. Frank Baum, is first published in the United States. The first copy is given to the author's sister.
July 9 » The Federation of Australia is given royal assent.
Day of marriage February 14, 1921
The temperature on February 14, 1921 was between 0.8 °C and 8.7 °C and averaged 5.2 °C. There was 2.1 mm of rain. There was 4.1 hours of sunshine (42%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. 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.
February 22 » After Russian forces under Baron Roman von Ungern-Sternberg drive the Chinese out, the Bogd Khan is reinstalled as the emperor of Mongolia.
March 20 » The Upper Silesia plebiscite was a plebiscite mandated by the Versailles Treaty to determine a section of the border between Weimar Germany and Poland.
May 3 » The Government of Ireland Act 1920 is passed, dividing Ireland into Northern Ireland and Southern Ireland.
June 30 » U.S. President Warren G. Harding appoints former President William Howard Taft as Chief Justice of the United States.
October 5 » The World Series is the first to be broadcast on radio.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
Day of death March 21, 1968
The temperature on March 21, 1968 was between 1.4 °C and 9.5 °C and averaged 6.1 °C. There was 3.8 mm of rain during 4.9 hours. There was 0.1 hours of sunshine (1%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 13 » Johnny Cash performs live at Folsom State Prison.
January 21 » Vietnam War: Battle of Khe Sanh: One of the most publicized and controversial battles of the war begins.
March 7 » Vietnam War: The United States and South Vietnamese military begin Operation Truong Cong Dinh to root out Viet Cong forces from the area surrounding Mỹ Tho.
April 11 » Assassination attempt on Rudi Dutschke, leader of the German student movement.
December 25 » Apollo program: Apollo 8 performs the first successful Trans-Earth injection (TEI) maneuver, sending the crew and spacecraft on a trajectory back to Earth from Lunar orbit.
December 27 » Apollo program: Apollo 8 splashes down in the Pacific Ocean, ending the first orbital manned mission to the Moon.
When copying data from this family tree, please include a reference to the origin: Dimitri Reinderman, "Family tree Reinderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-reinderman/I9735.php : accessed February 16, 2026), "Katie Zomer (1900-1968)".
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