April 2 » The United States Congress passes the Foraker Act, giving Puerto Rico limited self-rule.
June 14 » The second German Naval Law calls for the Imperial German Navy to be doubled in size, resulting in an Anglo-German naval arms race.
July 19 » The first line of the Paris Métro opens for operation.
August 14 » The Eight-Nation Alliance occupies Beijing, China, in a campaign to end the bloody Boxer Rebellion in China.
September 17 » Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham Jr. at Mabitac.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death June 22, 1981
The temperature on June 22, 1981 was between 8.7 °C and 18.8 °C and averaged 14.0 °C. There was 7.4 hours of sunshine (44%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
March 27 » The Solidarity movement in Poland stages a warning strike, in which at least 12 million Poles walk off their jobs for four hours.
April 27 » Xerox PARC introduces the computer mouse.
August 24 » Mark David Chapman is sentenced to 20 years to life in prison for murdering John Lennon.
October 9 » President François Mitterrand abolishes capital punishment in France.
November 30 » Cold War: In Geneva, representatives from the United States and the Soviet Union begin to negotiate intermediate-range nuclear weapon reductions in Europe. (The meetings end inconclusively on December 17.)
December 19 » Sixteen lives are lost when the Penlee lifeboat goes to the aid of the stricken coaster Union Star in heavy seas.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I121328.php : accessed October 18, 2026), "Jentje Dijkstra (1900-1981)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.