January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
February 27 » Second Boer War: Australian soldiers Harry "Breaker" Morant and Peter Handcock are executed in Pretoria after being convicted of war crimes.
March 7 » Second Boer War: Boers, led by Koos de la Rey, inflict the biggest defeat upon the British since the beginning of the war, at Tweebosch.
August 22 » Cadillac Motor Company is founded.
November 21 » The Philadelphia Football Athletics defeated the Kanaweola Athletic Club of Elmira, New York, 39–0, in the first ever professional American football night game.
November 29 » The Pittsburgh Stars defeated the Philadelphia Athletics, 11–0 to win the first championship associated with an American national professional football league.
Day of death May 17, 1991
The temperature on May 17, 1991 was between 3.4 °C and 11.0 °C and averaged 7.7 °C. There was -0.1 mm of rain. There was 0.2 hours of sunshine (1%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 16 » Nicaraguan Contras leader Enrique Bermúdez is assassinated in Managua.
February 23 » In Thailand, General Sunthorn Kongsompong leads a bloodless coup d'état, deposing Prime Minister Chatichai Choonhavan.
April 4 » Senator John Heinz of Pennsylvania and six others are killed when a helicopter collides with their airplane over an elementary school in Merion, Pennsylvania.
April 14 » The Republic of Georgia introduces the post of President after its declaration of independence from the Soviet Union.
May 31 » Bicesse Accords in Angola lay out a transition to multi-party democracy under the supervision of the United Nations' UNAVEM II mission.
September 6 » The Russian parliament approves the name change of Leningrad back to Saint Petersburg. The change is effective October 1, 1991.
When copying data from this family tree, please include a reference to the origin: Eddy Pollet, "Family tree Pollet", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-pollet/I453.php : accessed February 6, 2026), "Gislena Coralia de Neef (1902-1991)".
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