January 31 » Czechoslav Trade Union Association is founded in Prague.
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.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of marriage May 23, 1923
The temperature on May 23, 1923 was between 6.6 °C and 16.5 °C and averaged 11.6 °C. There was 2.5 mm of rain. There was 2.0 hours of sunshine (12%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
June 18 » Checker Taxi puts its first taxi on the streets.
September 13 » Following a military coup in Spain, Miguel Primo de Rivera takes over, setting up a dictatorship.
October 6 » The Turkish National Movement enters Constantinople.
October 15 » The German Rentenmark is introduced in Germany to counter hyperinflation in the Weimar Republic.
November 9 » In Munich, Germany, police and government troops crush the Beer Hall Putsch in Bavaria. The failed coup is the work of the Nazis.
November 11 » Adolf Hitler was arrested in Munich for high treason for his role in the Beer Hall Putsch.
Day of death February 19, 1976
The temperature on February 19, 1976 was between 0.5 °C and 11.5 °C and averaged 5.6 °C. There was 6.9 hours of sunshine (68%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
May 8 » The rollercoaster The New Revolution, the first steel coaster with a vertical loop, opens at Six Flags Magic Mountain.
June 5 » The Teton Dam in Idaho, United States, collapses.
July 4 » Israeli commandos raid Entebbe airport in Uganda, rescuing all but four of the passengers and crew of an Air France jetliner seized by Palestinian terrorists.
September 3 » Viking program: The American Viking 2 spacecraft lands at Utopia Planitia on Mars.
September 10 » A British Airways Hawker Siddeley Trident and an Inex-Adria DC-9 collide near Zagreb, Yugoslavia, killing 176.
November 26 » "Anarchy in the U.K.", the debut single of the Sex Pistols, is released, heralding the arrival of punk rock
When copying data from this family tree, please include a reference to the origin: G. Polman, "Family tree Polman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-polman/I759.php : accessed February 14, 2026), "Antoinetta-Henrietta Polman (1897-1976)".
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