March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
May 7 » In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.
June 11 » Paris–Bordeaux–Paris, sometimes called the first automobile race in history or the "first motor race", takes place.
September 3 » John Brallier becomes the first openly professional American football player, when he was paid US$10 by David Berry, to play for the Latrobe Athletic Association in a 12-0 win over the Jeanette Athletic Association.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of death April 12, 1965
The temperature on April 12, 1965 was between 3.9 °C and 11.7 °C and averaged 7.0 °C. There was 13.0 mm of rain during 4.1 hours. There was 0.7 hours of sunshine (5%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 9 » The Mirzapur Cadet College formally opens for academic activities in East Pakistan (now Bangladesh).
April 28 » United States occupation of the Dominican Republic: American troops land in the Dominican Republic to "forestall establishment of a Communist dictatorship" and to evacuate U.S. Army troops.
May 1 » Cross-Strait relations: Battle of Dong-Yin, a naval conflict between the Republic of China and the People's Republic of China, takes place.
July 30 » U.S. President Lyndon B. Johnson signs the Social Security Act of 1965 into law, establishing Medicare and Medicaid.
November 9 » A Catholic Worker Movement member, Roger Allen LaPorte, protesting against the Vietnam War, sets himself on fire in front of the United Nations building.
November 9 » Several U.S. states and parts of Canada are hit by a series of blackouts lasting up to 13 hours in the Northeast blackout of 1965.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I97677.php : accessed February 14, 2026), "Catharina Olsthoorn (1895-1965)".
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