The temperature on December 14, 1890 was about -2.7 °C. The air pressure was 1 kgf/m2 and came mainly from the east-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 92%. Source: KNMI
January 1 » Eritrea is consolidated into a colony by the Italian government.
March 20 » Prime Minister of the German Empire Otto von Bismarck is dismissed by Emperor Wilhelm II.
July 3 » Idaho is admitted as the 43rd U.S. state.
July 10 » Wyoming is admitted as the 44th U.S. state.
September 25 » The United States Congress establishes Sequoia National Park.
December 22 » Cornwallis Valley Railway begins operation between Kentville and Kingsport, Nova Scotia.
Day of marriage September 15, 1920
The temperature on September 15, 1920 was between 7.0 °C and 15.2 °C and averaged 12.9 °C. There was 2.6 mm of rain. The average windspeed was 3 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 16 » Zeta Phi Beta Sorority Incorporated was founded on the campus of Howard University.
February 14 » The League of Women Voters is founded in Chicago.
March 12 » The Kapp Putsch begins when the Marinebrigade Ehrhardt is ordered to march on Berlin.
May 7 » Kiev Offensive: Polish troops led by Józef Piłsudski and Edward Rydz-Śmigły and assisted by a symbolic Ukrainian force capture Kiev only to be driven out by the Red Army counter-offensive a month later.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
August 31 » Polish–Soviet War: A decisive Polish victory in the Battle of Komarów.
Day of death September 20, 1955
The temperature on September 20, 1955 was between 7.0 °C and 20.7 °C and averaged 13.5 °C. There was 9.9 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
February 8 » The Government of Sindh, Pakistan, abolishes the Jagirdari system in the province. One million acres (4000km) of land thus acquired is to be distributed among the landless peasants.
April 12 » The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
May 2 » Tennessee Williams wins the Pulitzer Prize for Drama for Cat on a Hot Tin Roof.
May 18 » Operation Passage to Freedom, the evacuation of 310,000 Vietnamese civilians, soldiers and non-Vietnamese members of the French Army from communist North Vietnam to South Vietnam following the end of the First Indochina War, ends.
June 26 » The South African Congress Alliance adopts the Freedom Charter at the Congress of the People in Kliptown.
November 5 » After being destroyed in World War II, the rebuilt Vienna State Opera reopens with a performance of Beethoven's Fidelio.
When copying data from this family tree, please include a reference to the origin: Michiel van Loon, "Family tree Van Loon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-loon/I4367.php : accessed March 13, 2026), "Aaltje van der Ploeg (1890-1955)".
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