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.
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of marriage March 5, 1920
The temperature on March 5, 1920 was between 2.5 °C and 13.3 °C and averaged 7.6 °C. There was 5.3 hours of sunshine (48%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. 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.
February 10 » About 75% of the population in Zone I votes to join Denmark in the 1920 Schleswig plebiscites.
March 12 » The Kapp Putsch begins when the Marinebrigade Ehrhardt is ordered to march on Berlin.
March 19 » The United States Senate rejects the Treaty of Versailles for the second time (the first time was on November 19, 1919).
March 22 » Azeri and Turkish army soldiers with participation of Kurdish gangs attacked the Armenian inhabitants of Shushi (Nagorno Karabakh).
July 15 » The Polish Parliament establishes Silesian Voivodeship before the Polish-German plebiscite.
October 14 » Finland and Soviet Russia sign the Treaty of Tartu, exchanging some territories.
Day of death October 15, 1935
The temperature on October 15, 1935 was between 11.6 °C and 15.2 °C and averaged 12.8 °C. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 12 » USSMacon, one of the two largest helium-filled airships ever created, crashes into the Pacific Ocean off the coast of California and sinks.
February 20 » Caroline Mikkelsen becomes the first woman to set foot in Antarctica.
June 25 » Colombia–Soviet Union relations are established.
July 5 » The National Labor Relations Act, which governs labor relations in the United States, is signed into law by President Franklin D. Roosevelt.
July 24 » The Dust Bowl heat wave reaches its peak, sending temperatures to 109°F (43°C) in Chicago and 104°F (40°C) in Milwaukee.
September 24 » Earl and Weldon Bascom produce the first rodeo ever held outdoors under electric lights.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I38253.php : accessed January 25, 2026), "Elbertje Koetsier (1897-1935)".
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