The temperature on May 20, 1921 was between 5.7 °C and 19.3 °C and averaged 12.7 °C. There was 9.6 hours of sunshine (60%). 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 16 » The Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa.
March 15 » Talaat Pasha, former Grand Vizir of the Ottoman Empire and chief architect of the Armenian Genocide is assassinated in Berlin by a 23-year-old Armenian, Soghomon Tehlirian.
March 17 » The Second Polish Republic adopts the March Constitution.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
July 11 » A truce in the Irish War of Independence comes into effect.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
Day of death December 28, 1990
The temperature on December 28, 1990 was between 1.6 °C and 8.9 °C and averaged 4.9 °C. There was 0.2 mm of rain during 1.7 hours. There was 0.7 hours of sunshine (9%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 13 » Douglas Wilder becomes the first elected African American governor as he takes office as Governor of Virginia in Richmond, Virginia.
March 15 » Mikhail Gorbachev is elected as the first President of the Soviet Union.
March 19 » The ethnic clashes of Târgu Mureș begin four days after the anniversary of the Revolutions of 1848 in the Austrian Empire.
May 17 » The General Assembly of the World Health Organization (WHO) eliminates homosexuality from the list of psychiatric diseases.
July 27 » The Supreme Soviet of the Belarusian Soviet Republic declares independence of Belarus from the Soviet Union. Until 1996 the day is celebrated as the Independence Day of Belarus; after a referendum held that year the celebration of independence is moved to June 3.
November 15 » Space Shuttle program: Space Shuttle Atlantis launches with flight STS-38.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I4376.php : accessed January 6, 2026), "Simon Plugge (1921-1990)".
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