April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage February 11, 1920
The temperature on February 11, 1920 was between 4.7 °C and 8.9 °C and averaged 7.2 °C. There was 4.7 mm of rain. There was 5.4 hours of sunshine (56%). The average windspeed was 6 Bft (strong wind) and was prevailing from the west. 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 League of Nations holds its first council meeting in Paris, France.
May 7 » Morecambe Football Club was founded during a meeting at the West View Hotel on the town's promenade.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
October 10 » The Carinthian plebiscite determines that the larger part of the Duchy of Carinthia should remain part of Austria.
November 2 » In the United States, KDKA of Pittsburgh starts broadcasting as the first commercial radio station. The first broadcast is the result of the 1920 United States presidential election.
November 12 » Italy and the Kingdom of Serbs, Croats and Slovenes sign the Treaty of Rapallo.
Day of death January 9, 1965
The temperature on January 9, 1965 was between 3.5 °C and 7.5 °C and averaged 5.5 °C. There was 9.1 mm of rain during 5.6 hours. There was 2.5 hours of sunshine (31%). The partly or heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
March 21 » Ranger program: NASA launches Ranger 9, the last in a series of unmanned lunar space probes.
March 25 » Civil rights activists led by Martin Luther King Jr. successfully complete their 4-day 50-mile march from Selma to the capitol in Montgomery, Alabama.
August 29 » The Gemini V spacecraft returns to Earth, landing in the Atlantic Ocean.
November 27 » Vietnam War: The Pentagon tells U.S. President Lyndon B. Johnson that if planned operations are to succeed, the number of American troops in Vietnam has to be increased from 120,000 to 400,000.
December 4 » The Grateful Dead's first concert performance under this new name.
December 21 » International Convention on the Elimination of All Forms of Racial Discrimination is adopted.
When copying data from this family tree, please include a reference to the origin: Peter Keesman, "Family tree Keesman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-keesman/I3676.php : accessed February 16, 2026), "Wilhelmus Jacobus Ferdinand Frauenfelder (1897-1965)".
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