The temperature on July 8, 1923 was between 15.5 °C and 27.1 °C and averaged 21.1 °C. There was 13.1 hours of sunshine (79%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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.
January 1 » Britain's Railways are grouped into the Big Four: LNER, GWR, SR, and LMS.
January 9 » Juan de la Cierva makes the first autogyro flight.
March 3 » TIME magazine is published for the first time.
March 20 » The Arts Club of Chicago hosts the opening of Pablo Picasso's first United States showing, entitled Original Drawings by Pablo Picasso, becoming an early proponent of modern art in the United States.
April 15 » Insulin becomes generally available for use by people with diabetes.
April 26 » The Duke of York weds Lady Elizabeth Bowes-Lyon at Westminster Abbey.
Day of death July 20, 1968
The temperature on July 20, 1968 was between 9.6 °C and 18.6 °C and averaged 14.1 °C. There was 9.5 hours of sunshine (59%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
April 6 » Pierre Elliott Trudeau wins the Liberal Leadership Election, and becomes Prime Minister of Canada soon after.
August 21 » James Anderson Jr. posthumously receives the first Medal of Honor to be awarded to an African American U.S. Marine.
November 1 » The Motion Picture Association of America's film rating system is officially introduced, originating with the ratings G, M, R, and X.
November 11 » Vietnam War: Operation Commando Hunt initiated. The goal is to interdict men and supplies on the Ho Chi Minh trail, through Laos into South Vietnam.
December 16 » Second Vatican Council: Official revocation of the Edict of Expulsion of Jews from Spain.
December 20 » The Zodiac Killer kills Betty Lou Jenson and David Faraday in Vallejo, California.
When copying data from this family tree, please include a reference to the origin: Klaas Gebert, "Gebert Wereld", database, Genealogy Online (https://www.genealogieonline.nl/gebert-wereld/P123.php : accessed February 28, 2026), "Frederik Stoffer Caesar Ketelaar (1923-1968)".
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