February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
April 14 » The Exposition Universelle begins.
June 5 » Second Boer War: British soldiers take Pretoria.
June 14 » Hawaii becomes a United States territory.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of marriage August 27, 1931
The temperature on August 27, 1931 was between 4.5 °C and 19.8 °C and averaged 13.0 °C. There was 12.5 hours of sunshine (89%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 15 » SSViking explodes off Newfoundland, killing 27 of the 147 on board.
March 31 » A Transcontinental & Western Air airliner crashes near Bazaar, Kansas, killing eight, including University of Notre Dame head football coach Knute Rockne.
April 14 » The Spanish Cortes deposes King Alfonso XIII and proclaims the Second Spanish Republic.
May 29 » Michele Schirru, a citizen of the United States, is executed by Italian military firing squad for intent to kill Benito Mussolini.
November 7 » The Chinese Soviet Republic is proclaimed on the anniversary of the October Revolution.
December 9 » The Constituent Cortes approves a constitution which establishes the Second Spanish Republic.
Day of death February 27, 1984
The temperature on February 27, 1984 was between 1.1 °C and 2.5 °C and averaged 1.6 °C. There was -0.1 mm of rain. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 3 » John Buster and the research team at Harbor-UCLA Medical Center announce history's first embryo transfer, from one woman to another resulting in a live birth.
March 6 » In the United Kingdom, a walkout at Cortonwood Colliery in Brampton Bierlow signals the start of a strike that lasted almost a year and involved the majority of the country's miners.
June 22 » Virgin Atlantic launches with its first flight from London to Newark.
July 28 » Olympic Games: Games of the XXIII Olympiad: The summer Olympics were opened in Los Angeles.
November 27 » Under the Brussels Agreement signed between the governments of the United Kingdom and Spain, the former agreed to enter into discussions with Spain over Gibraltar, including sovereignty.
December 10 » United Nations General Assembly recognizes the Convention against Torture.
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/I18124.php : accessed February 5, 2026), "Willem Slooff (1900-1984)".
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