January 13 » Émile Zola's J'accuse…! exposes the Dreyfus affair.
February 27 » King George I of Greece survives an assassination attempt.
August 12 » The Hawaiian flag is lowered from ʻIolani Palace in an elaborate annexation ceremony and replaced with the flag of the United States to signify the transfer of sovereignty from the Republic of Hawaii to the United States.
August 28 » Caleb Bradham's beverage "Brad's Drink" is renamed "Pepsi-Cola".
September 13 » Hannibal Goodwin patents celluloid photographic film.
October 1 » The Vienna University of Economics and Business Administration is founded under the name k.u.k. Exportakademie.
Day of marriage June 23, 1921
The temperature on June 23, 1921 was between 7.6 °C and 19.1 °C and averaged 14.5 °C. There was 1.7 hours of sunshine (10%). The average windspeed was 3 Bft (moderate breeze) 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.
April 2 » The Autonomous Government of Khorasan, a military government encompassing the modern state of Iran, is established.
May 8 » The creation of the Communist Party of Romania.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
September 8 » Margaret Gorman, a 16-year-old, wins the Atlantic City Pageant's Golden Mermaid trophy; pageant officials later dubbed her the first Miss America.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
Day of death June 7, 1931
The temperature on June 7, 1931 was between 9.9 °C and 17.4 °C and averaged 13.7 °C. There was 5.2 mm of rain during 5.1 hours. There was 0.9 hours of sunshine (5%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 3 » The United States adopts The Star-Spangled Banner as its national anthem.
March 5 » The British Raj: Gandhi–Irwin Pact is signed.
March 23 » Bhagat Singh, Shivaram Rajguru and Sukhdev Thapar are hanged for the killing of a deputy superintendent of police during the Indian independence movement.
June 23 » Wiley Post and Harold Gatty take off from Roosevelt Field, Long Island in an attempt to circumnavigate the world in a single-engine plane.
October 1 » The George Washington Bridge in the United States, linking New Jersey and New York, is opened.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I66376.php : accessed February 19, 2026), "Jantje Scholten (1898-1931)".
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