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 13 » The Independent Labour Party of the United Kingdom holds its first meeting.
January 21 » The Tati Concessions Land, formerly part of Matabeleland, is formally annexed to the Bechuanaland Protectorate, now Botswana.
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.
September 20 » Charles Duryea and his brother road-test the first American-made gasoline-powered automobile.
November 12 » Abdur Rahman Khan accepts the Durand Line as the border between Afghanistan and the British Raj.
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 6 » The five-day Seattle General Strike begins, as more than 65,000 workers in the city of Seattle, Washington, walk off the job.
March 23 » In Milan, Italy, Benito Mussolini founds his Fascist political movement.
May 29 » Albert Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington and Andrew Claude de la Cherois Crommelin
October 17 » RCA is incorporated as the Radio Corporation of America.
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
March 10 » Military Prime Minister of South Vietnam Nguyễn Cao Kỳ sacked rival General Nguyễn Chánh Thi, precipitating large-scale civil and military dissension in parts of the nation.
March 19 » 1965–66 Texas Western Miners men's basketball team wins the NCAA Division I Men's Basketball Tournament.
April 26 » The magnitude 5.1 Tashkent earthquake affects the largest city in Soviet Central Asia with a maximum MSK intensity of VII (Very strong). Tashkent is mostly destroyed and 15–200 are killed.
October 9 » Vietnam War: South Korean troops commit the Binh Tai Massacre.
October 10 » The Beach Boys release one of their biggest singles, ranked the 6th greatest song by Rolling Stone, "Good Vibrations".
November 4 » The Arno River floods Florence, Italy, to a maximum depth of 6.7m (22ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Also Venice was submerged on the same day at its record all-time acqua alta of 194cm (76in).
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 October 11, 2026), "Hendrik Koop (1893-1966)".
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