The temperature on March 20, 1920 was between 2.8 °C and 13.5 °C and averaged 8.1 °C. There was 4.7 hours of sunshine (39%). The average windspeed was 3 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.
June 15 » Following the 1920 Schleswig plebiscites, Northern Schleswig is transferred from Germany to Denmark.
August 10 » World War I: Ottoman sultan Mehmed VI's representatives sign the Treaty of Sèvres that divides up the Ottoman Empire between the Allies.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
September 7 » Two newly purchased Savoia flying boats crash in the Swiss Alps en route to Finland where they would serve with the Finnish Air Force, killing both crews.
September 17 » The National Football League is organized as the American Professional Football Association in Canton, Ohio.
Day of death June 18, 1989
The temperature on June 18, 1989 was between 12.5 °C and 24.1 °C and averaged 18.6 °C. There was 13.3 hours of sunshine (79%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
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.
February 6 » The Round Table Talks start in Poland, thus marking the beginning of the overthrow of communism in Eastern Europe.
April 2 » Soviet leader Mikhail Gorbachev arrives in Havana, Cuba, to meet with Fidel Castro in an attempt to mend strained relations.
May 13 » Large groups of students occupy Tiananmen Square and begin a hunger strike.
July 27 » While attempting to land at Tripoli International Airport in Libya, Korean Air Flight 803 crashes just short of the runway. Seventy-five of the 199 passengers and crew and four people on the ground are killed, in the second accident involving a DC-10 in less than two weeks, the first being United Airlines Flight 232.
August 19 » Several hundred East Germans cross the frontier between Hungary and Austria during the Pan-European Picnic, part of the events that began the process of the Fall of the Berlin Wall.
December 6 » The École Polytechnique massacre (or Montreal Massacre): Marc Lépine, an anti-feminist gunman, murders 14 young women at the École Polytechnique in Montreal.
When copying data from this family tree, please include a reference to the origin: Van Knippenberg, "Family tree Van Knippenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-knippenberg/I532.php : accessed January 20, 2026), "Godfried van Knippenberg (1920-1989)".
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