January 31 » Czechoslav Trade Union Association is founded in Prague.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of death October 11, 1972
The temperature on October 11, 1972 was between 3.2 °C and 16.3 °C and averaged 9.7 °C. There was -0.1 mm of rain. There was 8.8 hours of sunshine (80%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet Biesheuvel I, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
April 13 » Vietnam War: The Battle of An Lộc begins.
June 29 » The United States Supreme Court rules in the case Furman v. Georgia that arbitrary and inconsistent imposition of the death penalty violates the Eighth and Fourteenth Amendments and constitutes cruel and unusual punishment.
July 23 » The United States launches Landsat 1, the first Earth-resources satellite.
October 13 » Uruguayan Air Force Flight 571 crashes in the Andes mountains. 28 survive the crash. All but 16 succumb before rescue on December 23.
November 8 » American pay television network Home Box Office (HBO) launches, initially transmitting to 365 Teleservice Cable subscribers in Wilkes-Barre, Pennsylvania. First operating as a Northeastern U.S.-based regional service, HBO was one of the first cable-originated television channels. HBO's inaugural programming that evening consisted of its first event telecast—an NHL hockey game between the New York Rangers and the Vancouver Canucks, and its first movie presentation—the 1971 Paul Newman–Henry Fonda film Sometimes a Great Notion.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I208899.php : accessed December 31, 2025), "Mattheus Derk van der Ploeg (1897-1972)".
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