March 1 » Henri Becquerel discovers radioactive decay.
June 15 » The deadliest tsunami in Japan's history kills more than 22,000 people.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
September 22 » Queen Victoria surpasses her grandfather King George III as the longest reigning monarch in British history.
November 1 » A picture showing the bare breasts of a woman appears in National Geographic magazine for the first time.
December 30 » Filipino patriot and reform advocate José Rizal is executed by a Spanish firing squad in Manila.
Day of marriage October 24, 1928
The temperature on October 24, 1928 was between 6.6 °C and 16.2 °C and averaged 11.9 °C. There was 0.3 mm of rain. There was 0.6 hours of sunshine (6%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
June 8 » Second Northern Expedition: The National Revolutionary Army captures Peking, whose name is changed to Beijing ("Northern Capital").
June 9 » Charles Kingsford Smith completes the first trans-Pacific flight in a Fokker Trimotor monoplane, the Southern Cross.
September 18 » Juan de la Cierva makes the first autogyro crossing of the English Channel.
October 2 » The "Prelature of the Holy Cross and the Work of God", commonly known as Opus Dei, is founded.
November 15 » The RNLI lifeboat Mary Stanford capsized in Rye Harbour with the loss of the entire 17-man crew.
November 22 » The premier performance of Ravel's Boléro takes place in Paris.
Day of death November 1, 1960
The temperature on November 1, 1960 was between 6.9 °C and 15.0 °C and averaged 12.6 °C. There was 16.8 mm of rain during 11.6 hours. There was 0.8 hours of sunshine (8%). The heavily clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south. Source: KNMI
March 22 » Arthur Leonard Schawlow and Charles Hard Townes receive the first patent for a laser.
May 13 » Hundreds of University of California, Berkeley students congregate for the first day of protest against a visit by the House Committee on Un-American Activities.
September 10 » At the Summer Olympics in Rome, Abebe Bikila becomes the first sub-Saharan African to win a gold medal, winning the marathon in bare feet.
December 3 » The musical Camelot debuts at the Majestic Theatre on Broadway. It will become associated with the Kennedy administration.
December 15 » Richard Pavlick is arrested for plotting to assassinate U.S. President-Elect John F. Kennedy.
December 17 » Munich C-131 crash: Twenty passengers and crew on board as well as 32 people on the ground are killed.
When copying data from this family tree, please include a reference to the origin: Michiel van Loon, "Family tree Van Loon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-loon/I274.php : accessed February 6, 2026), "Hendrik Jan van der Ploeg (1896-1960)".
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