April 20 » Pierre and Marie Curie refine radium chloride.
May 8 » In Martinique, Mount Pelée erupts, destroying the town of Saint-Pierre and killing over 30,000 people. Only a handful of residents survive the blast.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
November 29 » The Pittsburgh Stars defeated the Philadelphia Athletics, 11–0 to win the first championship associated with an American national professional football league.
December 28 » The Syracuse Athletic Club defeated the New York Philadelphians, 5–0, in the first indoor professional football game, which was held at Madison Square Garden.
Day of marriage May 9, 1923
The temperature on May 9, 1923 was between 6.2 °C and 13.6 °C and averaged 9.1 °C. There was 5.1 mm of rain. There was 1.9 hours of sunshine (12%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. 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.
April 26 » The Duke of York weds Lady Elizabeth Bowes-Lyon at Westminster Abbey.
September 7 » The International Criminal Police Organization (INTERPOL) is formed.
September 8 » Honda Point disaster: Nine US Navy destroyers run aground off the California coast. Seven are lost, and twenty-three sailors killed.
September 9 » Mustafa Kemal Atatürk, the founder of the Republic of Turkey, founds the Republican People's Party.
September 26 » The German government accepts the occupation of the Ruhr.
September 29 » The French Mandate for Syria and the Lebanon takes effect.
Day of death August 7, 1979
The temperature on August 7, 1979 was between 15.4 °C and 24.2 °C and averaged 19.6 °C. There was -0.1 mm of rain. There was 2.5 hours of sunshine (16%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
January 16 » The last Iranian Shah flees Iran with his family for good and relocates to Egypt.
April 1 » Nickelodeon was launched in United States.
July 17 » Nicaraguan dictator General Anastasio Somoza Debayle resigns and flees to Miami, Florida, United States.
November 1 » In Bolivia, Colonel Alberto Natusch executes a bloody coup d'état against the constitutional government of Wálter Guevara.
December 21 » Lancaster House Agreement: An independence agreement for Rhodesia is signed in London by Lord Carrington, Sir Ian Gilmour, Robert Mugabe, Joshua Nkomo, Bishop Abel Muzorewa and S.C. Mundawarara.
December 23 » Soviet–Afghan War: Soviet Union forces occupy Kabul, the Afghan capital.
When copying data from this family tree, please include a reference to the origin: Dirk Kalksma, "Family tree Kalksma", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kalksma/I517.php : accessed February 15, 2026), "Petronella Kalksma (1902-1979)".
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