January 31 » Czechoslav Trade Union Association is founded in Prague.
February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of marriage February 19, 1921
The temperature on February 19, 1921 was between -1.0 °C and 9.2 °C and averaged 4.6 °C. There was 7.9 hours of sunshine (78%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. 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.
May 3 » West Virginia becomes the first state to legislate a broad sales tax, but does not implement it until a number of years later due to enforcement issues.
May 19 » The United States Congress passes the Emergency Quota Act establishing national quotas on immigration.
July 11 » A truce in the Irish War of Independence comes into effect.
September 8 » Margaret Gorman, a 16-year-old, wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America.
November 4 » Japanese Prime Minister Hara Takashi is assassinated in Tokyo.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I56993.php : accessed March 5, 2026), "Nantko Mik (1897-????)".
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