February 27 » Second Boer War: Australian soldiers Harry "Breaker" Morant and Peter Handcock are executed in Pretoria after being convicted of war crimes.
April 20 » Pierre and Marie Curie refine radium chloride.
May 8 » In Martinique, Mount Pelée erupts, destroying the town of Saint-Pierre and killing over 30,000 people. Only a handful of residents survive the blast.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
December 28 » The Syracuse Athletic Club defeated the New York Philadelphians, 5–0, in the first indoor professional football game, which was held at Madison Square Garden.
Day of death December 1, 1981
The temperature on December 1, 1981 was between 0.9 °C and 6.9 °C and averaged 4.4 °C. There was 0.6 mm of rain during 0.7 hours. There was 0.9 hours of sunshine (11%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. 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 1 » Provisional Irish Republican Army member Bobby Sands begins his hunger strike in HM Prison Maze.
April 3 » The Osborne 1, the first successful portable computer, is unveiled at the West Coast Computer Faire in San Francisco.
April 25 » More than 100 workers are exposed to radiation during repairs of at the Tsuruga Nuclear Power Plant in Japan.
May 13 » Mehmet Ali Ağca attempts to assassinate Pope John Paul II in St. Peter's Square in Rome. The Pope is rushed to the Agostino Gemelli University Polyclinic to undergo emergency surgery and survives.
August 3 » Senegalese opposition parties, under the leadership of Mamadou Dia, launch the Antiimperialist Action Front – Suxxali Reew Mi.
September 18 » The Assemblée Nationale votes to abolish capital punishment in France.
When copying data from this family tree, please include a reference to the origin: B.J. Jansen, "Family tree Jansen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jansen/I33645.php : accessed February 17, 2026), "Heinrich Hermann Wegmann (1902-1981)".
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