The temperature on December 2, 1893 was about -0.1 °C. There was 0.2 mm of rain. The airpressure was 77 cm mercury. The atmospheric humidity was 96%. Source: KNMI
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
January 17 » Lorrin A. Thurston, along with the Citizens' Committee of Public Safety, led the Overthrow of the Kingdom of Hawaii and the government of Queen Liliʻuokalani.
June 13 » Grover Cleveland notices a rough spot in his mouth and on July 1 undergoes secret, successful surgery to remove a large, cancerous portion of his jaw; the operation was not revealed to the public until 1917, nine years after the president's death.
July 9 » Daniel Hale Williams, American heart surgeon, performs the first successful open-heart surgery in United States without anesthesia.
August 14 » France becomes the first country to introduce motor vehicle registration.
December 4 » First Matabele War: A patrol of 34 British South Africa Company soldiers is ambushed and annihilated by more than 3,000 Matabele warriors on the Shangani River in Matabeleland.
December 23 » The opera Hansel and Gretel by Engelbert Humperdinck is first performed.
Day of marriage May 17, 1919
The temperature on May 17, 1919 was between 6.6 °C and 21.9 °C and averaged 14.9 °C. There was 13.6 hours of sunshine (86%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 16 » Nebraska becomes the 36th state to approve the Eighteenth Amendment to the United States Constitution. With the necessary three-quarters of the states approving the amendment, Prohibition is constitutionally mandated in the United States one year later.
January 22 » Act Zluky is signed, unifying the Ukrainian People's Republic and the West Ukrainian National Republic.
February 21 » German socialist Kurt Eisner is assassinated. His death results in the establishment of the Bavarian Soviet Republic and parliament and government fleeing Munich, Germany.
May 15 » The Winnipeg general strike begins. By 11:00, almost the whole working population of Winnipeg had walked off the job.
June 21 » Admiral Ludwig von Reuter scuttles the German fleet at Scapa Flow, Orkney. The nine sailors killed are the last casualties of World War I.
July 23 » Prince Regent Aleksander Karađorđević signs the decree establishing the University of Ljubljana
Day of death April 9, 1966
The temperature on April 9, 1966 was between 7.8 °C and 16.6 °C and averaged 12.1 °C. There was 6.6 mm of rain during 8.7 hours. There was 2.0 hours of sunshine (15%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
February 28 » A NASA T-38 Talon crashes into the McDonnell Aircraft factory while attempting a poor-visibility landing at Lambert Field, St. Louis, killing astronauts Elliot See and Charles Bassett.
March 1 » The Ba'ath Party takes power in Syria.
May 16 » The Communist Party of China issues the "May 16 Notice", marking the beginning of the Cultural Revolution.
July 4 » U.S. President Lyndon B. Johnson signs the Freedom of Information Act into United States law. The act went into effect the next year.
October 10 » The Beach Boys release one of their biggest singles, ranked the 6th greatest song by Rolling Stone, "Good Vibrations".
November 13 » In response to Fatah raids against Israelis near the West Bank border, Israel launches an attack on the village of As-Samu.
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/I102279.php : accessed February 14, 2026), "Hendrik Koop (1893-1966)".
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