February 1 » Shinhan Bank, the oldest bank in South Korea, opens in Seoul.
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 » 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.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
Day of marriage September 25, 1920
The temperature on September 25, 1920 was between 10.8 °C and 15.8 °C and averaged 13.7 °C. There was 0.1 mm of rain. The average windspeed was 2 Bft (weak wind) 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.
January 17 » Alcohol Prohibition begins in the United States as the Volstead Act goes into effect.
March 14 » In the second of the 1920 Schleswig plebiscites, about 80% of the population in Zone II votes to remain part of Weimar Germany.
July 29 » Construction of the Link River Dam begins as part of the Klamath Reclamation Project.
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.
October 14 » Finland and Soviet Russia sign the Treaty of Tartu, exchanging some territories.
December 19 » King Constantine I is restored as King of the Hellenes after the death of his son Alexander of Greece and a plebiscite.
Day of death June 4, 1966
The temperature on June 4, 1966 was between 8.2 °C and 26.1 °C and averaged 18.2 °C. There was 10.4 hours of sunshine (63%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
April 21 » Rastafari movement: Haile Selassie of Ethiopia visits Jamaica, an event now celebrated as Grounation Day.
April 26 » A new government is formed in the Republic of the Congo, led by Ambroise Noumazalaye.
May 25 » Explorer program: Explorer 32 launches.
November 8 » Former Massachusetts Attorney General Edward Brooke becomes the first African American elected to the United States Senate since Reconstruction.
November 15 » Project Gemini: Gemini 12 completes the program's final mission, when it splashes down safely in the Atlantic Ocean.
December 8 » The Greek ship SSHeraklion sinks in a storm in the Aegean Sea, killing over 200.
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/I82028.php : accessed October 1, 2026), "Tjerk Mulder (1897-1966)".
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