The temperature on September 1, 1911 was between 9.7 °C and 23.7 °C and averaged 16.4 °C. There was 10.4 hours of sunshine (76%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
Day of marriage May 7, 1936
The temperature on May 7, 1936 was between 10.8 °C and 17.7 °C and averaged 13.4 °C. There was 1.0 hours of sunshine (7%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
July 26 » King Edward VIII, in one of his few official duties before he abdicates the throne, officially unveils the Canadian National Vimy Memorial.
August 10 » Spanish Civil War: The Regional Defence Council of Aragon is dissolved by the Spanish Republic.
September 7 » The last thylacine, a carnivorous marsupial named Benjamin, dies alone in its cage at the Hobart Zoo in Tasmania.
December 7 » Australian cricketer Jack Fingleton becomes the first player to score centuries in four consecutive Test innings.
December 10 » Abdication Crisis: Edward VIII signs the Instrument of Abdication.
December 21 » First flight of the Junkers Ju 88 multi-role combat aircraft.
Day of death June 19, 1977
The temperature on June 19, 1977 was between 11.6 °C and 15.0 °C and averaged 13.4 °C. There was 1.7 mm of rain during 2.0 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
April 11 » London Transport's Silver Jubilee AEC Routemaster buses are launched.
April 21 » Annie opens on Broadway.
May 25 » Star Wars (retroactively titled Star Wars: Episode IV – A New Hope) is released in theaters.
June 30 » The Southeast Asia Treaty Organization disbands.
September 7 » The Torrijos–Carter Treaties between Panama and the United States on the status of the Panama Canal are signed. The United States agrees to transfer control of the canal to Panama at the end of the 20th century.
September 27 » Japan Airlines Flight 715 crashes on approach to Sultan Abdul Aziz Shah Airport in Subang, Malaysia, killing 34 of the 79 people on board.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I51.php : accessed January 26, 2026), "Klaas Ploeger (1911-1977)".
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