January 4 » Utah is admitted as the 45th U.S. state.
February 1 » La bohème premieres in Turin at the Teatro Regio (Turin), conducted by the young Arturo Toscanini.
March 1 » Henri Becquerel discovers radioactive decay.
May 18 » The United States Supreme Court rules in Plessy v. Ferguson that the "separate but equal" doctrine is constitutional.
August 16 » Skookum Jim Mason, George Carmack and Dawson Charlie discover gold in a tributary of the Klondike River in Canada, setting off the Klondike Gold Rush.
December 30 » Filipino patriot and reform advocate José Rizal is executed by a Spanish firing squad in Manila.
Day of marriage May 6, 1920
The temperature on May 6, 1920 was between 7.7 °C and 14.3 °C and averaged 10.5 °C. There was 3.8 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. 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 19 » The American Civil Liberties Union (ACLU) is founded.
February 9 » Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized.
February 10 » Józef Haller de Hallenburg performs symbolic wedding of Poland to the sea, celebrating restitution of Polish access to open sea.
February 14 » The League of Women Voters is founded in Chicago.
April 28 » Azerbaijan is added to the Soviet Union.
August 16 » Polish–Soviet War: The Battle of Radzymin concludes; the Soviet Red Army is forced to turn away from Warsaw.
Day of death September 11, 1955
The temperature on September 11, 1955 was between 6.3 °C and 20.4 °C and averaged 14.3 °C. There was 8.4 hours of sunshine (65%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
April 1 » The EOKA rebellion against the British Empire begins in Cyprus, with the goal of unifying with Greece.
April 18 » Twenty-nine nations meet at Bandung, Indonesia, for the first Asian-African Conference.
May 2 » Tennessee Williams wins the Pulitzer Prize for Drama for Cat on a Hot Tin Roof.
August 20 » Battle of Philippeville: In Morocco, a force of Berbers from the Atlas Mountains region of Algeria raid two rural settlements and kill 77 French nationals.
November 15 » The first part of Saint Petersburg Metro is opened.
December 5 » E. D. Nixon and Rosa Parks lead the Montgomery Bus Boycott.
When copying data from this family tree, please include a reference to the origin: Jaap Geensen, "Geensen database", database, Genealogy Online (https://www.genealogieonline.nl/geensen-database/I1891.php : accessed December 28, 2025), "Tanneke Geensen (1896-1955)".
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