The temperature on July 10, 1917 was between 12.2 °C and 17.8 °C and averaged 14.5 °C. There was 5.1 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 11 » The Kingsland munitions factory explosion occurs as a result of sabotage.
February 3 » First World War: The American entry into World War I begins when diplomatic relations with Germany are severed due to its unrestricted submarine warfare.
March 31 » According to the terms of the Treaty of the Danish West Indies, the islands become American possessions.
August 6 » World War I: Battle of Mărășești between the Romanian and German armies begins.
August 30 » Vietnamese prison guards led by Trịnh Văn Cấn mutiny at the Thái Nguyên penitentiary against local French authority.
October 15 » World War I: Dutch dancer Mata Hari is executed by France for espionage.
Day of marriage September 25, 1937
The temperature on September 25, 1937 was between 6.3 °C and 13.9 °C and averaged 11.4 °C. There was 3.2 mm of rain during 2.6 hours. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
April 1 » Spanish Civil War: Jaén, Spain is bombed by German fascist forces, supporting Francoist Nationalists.
May 12 » The Duke and Duchess of York are crowned as King George VI and Queen Elizabeth of the United Kingdom of Great Britain and Northern Ireland in Westminster Abbey.
May 26 » Walter Reuther and members of the United Auto Workers (UAW) clashed with Ford Motor Company security guards at the River Rouge Complex complex in Dearborn, Michigan, during the Battle of the Overpass.
May 30 » Memorial Day massacre: Chicago police shoot and kill ten labor demonstrators.
June 30 » The world's first emergency telephone number, 999, is introduced in London.
December 22 » The Lincoln Tunnel opens to traffic in New York City.
Day of death January 31, 1980
The temperature on January 31, 1980 was between 2.9 °C and 10.7 °C and averaged 7.0 °C. There was 23.9 mm of rain during 8.5 hours. There was 2.7 hours of sunshine (30%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
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.
February 24 » The United States Olympic hockey team completes its Miracle on Ice by defeating Finland 4–2 to win the gold medal.
March 23 » Archbishop Óscar Romero of El Salvador gives his famous speech appealing to men of the El Salvadoran armed forces to stop killing the Salvadorans.
April 3 » US Congress restores a federal trust relationship with the 501 members of the Shvwits, Kanosh, Koosharem, and the Indian Peaks and Cedar City bands of the Paiute people of Utah.
May 17 » General Chun Doo-hwan of South Korea seizes control of the government and declares martial law in order to suppress student demonstrations.
June 1 » Cable News Network (CNN) begins broadcasting.
July 29 » Iran adopts a new "holy" flag after the Islamic Revolution.
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/I144417.php : accessed October 24, 2026), "Hylke Poelstra (1917-1980)".
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