April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 6 » London becomes the world's first city to host licensed taxicabs.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage June 18, 1921
The temperature on June 18, 1921 was between 6.9 °C and 15.8 °C and averaged 12.3 °C. There was 5.2 hours of sunshine (31%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. 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 21 » The New Economic Policy is implemented by the Bolshevik Party in response to the economic failure as a result of war communism.
July 29 » Adolf Hitler becomes leader of the National Socialist German Workers Party.
October 5 » The World Series is the first to be broadcast on radio.
November 4 » The Saalschutz Abteilung (hall defense detachment) of the Nazi Party is renamed the Sturmabteilung (storm detachment) after a large riot in Munich.
November 14 » The Communist Party of Spain is founded, and issues the first edition of Mundo obrero.
Day of death July 4, 1982
The temperature on July 4, 1982 was between 12.0 °C and 18.5 °C and averaged 15.6 °C. There was -0.1 mm of rain. There was 6.5 hours of sunshine (39%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
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.
In The Netherlands , there was from Saturday, May 29, 1982 to Thursday, November 4, 1982 the cabinet Van Agt III, with Mr. A.A.M. van Agt (CDA) as prime minister.
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 1 » Peruvian Javier Pérez de Cuéllar becomes the first Latin American to hold the title of Secretary-General of the United Nations.
May 4 » Twenty sailors are killed when the British Type 42 destroyer HMSSheffield is hit by an Argentinian Exocet missile during the Falklands War.
July 23 » Outside Santa Clarita, California, actor Vic Morrow and two children are killed when a helicopter crashes onto them while shooting a scene from Twilight Zone: The Movie.
July 24 » Heavy rain causes a mudslide that destroys a bridge at Nagasaki, Japan, killing 299.
October 1 » Helmut Kohl replaces Helmut Schmidt as Chancellor of Germany through a constructive vote of no confidence.
November 3 » The Salang Tunnel fire in Afghanistan by kills 150–2000 people.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I57750.php : accessed March 3, 2026), "Gerhardus Henderikus (Geert) Heijnen (1897-1982)".
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