The temperature on February 20, 1880 was about 8.1 °C. There was 1 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 92%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
January 27 » Thomas Edison receives a patent for his incandescent lamp.
February 13 » Thomas Edison observes Thermionic emission.
May 11 » Seven people are killed in the Mussel Slough Tragedy, a gun battle in California.
June 24 » First performance of O Canada at the Congrès national des Canadiens-Français. The song would later become the national anthem of Canada.
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
September 16 » The Cornell Daily Sun prints its first issue in Ithaca, New York. The Sun is the United States' oldest, continuously-independent college daily.
Day of marriage January 14, 1904
The temperature on January 14, 1904 was between 4.3 °C and 6.7 °C and averaged 5.5 °C. The average windspeed was 6 Bft (strong wind) and was prevailing from the southwest. Source: KNMI
January 17 » Anton Chekhov's The Cherry Orchard receives its premiere performance at the Moscow Art Theatre.
April 8 » The French Third Republic and the United Kingdom of Great Britain and Ireland sign the Entente cordiale.
May 9 » The steam locomotive City of Truro becomes the first steam engine in Europe to exceed 100mph (160km/h).
May 21 » The Fédération Internationale de Football Association (FIFA) is founded in Paris.
June 15 » A fire aboard the steamboat SSGeneral Slocum in New York City's East River kills 1,000.
June 28 » The SSNorge runs aground on Hasselwood Rock in the North Atlantic 430 kilometres (270mi) northwest of Ireland. More than 635 people die during the sinking.
Day of death August 20, 1950
The temperature on August 20, 1950 was between 8.4 °C and 21.8 °C and averaged 16.3 °C. There was 9.9 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 23 » The Knesset resolves that Jerusalem is the capital of Israel.
May 19 » Egypt announces that the Suez Canal is closed to Israeli ships and commerce.
September 3 » "Nino" Farina becomes the first Formula One Drivers' champion after winning the 1950 Italian Grand Prix.
November 26 » Korean War: Troops from the People's Republic of China launch a massive counterattack in North Korea against South Korean and United Nations forces (Battle of the Ch'ongch'on River and Battle of Chosin Reservoir), ending any hopes of a quick end to the conflict.
December 9 » Cold War: Harry Gold is sentenced to 30 years in jail for helping Klaus Fuchs pass information about the Manhattan Project to the Soviet Union. His testimony is later instrumental in the prosecution of Julius and Ethel Rosenberg.
December 25 » The Stone of Scone, traditional coronation stone of British monarchs, is taken from Westminster Abbey by Scottish nationalist students. It later turns up in Scotland on April 11, 1951.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I13281.php : accessed February 17, 2026), "Margaretha Pos (1880-1950)".
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