The temperature on April 8, 1890 was about 4.5 °C. There was 0.3 mm of rain. The air pressure was 3 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 93%. Source: KNMI
January 25 » Nellie Bly completes her round-the-world journey in 72 days.
April 7 » Completion of the first Lake Biwa Canal.
June 1 » The United States Census Bureau begins using Herman Hollerith's tabulating machine to count census returns.
July 1 » Canada and Bermuda are linked by telegraph cable.
July 26 » In Buenos Aires, Argentina the Revolución del Parque takes place, forcing President Miguel Ángel Juárez Celman's resignation.
December 29 » Wounded Knee Massacre on Pine Ridge Indian Reservation, 300 Lakota are killed by the United States 7th Cavalry Regiment.
Day of marriage April 24, 1958
The temperature on April 24, 1958 was between 2.4 °C and 17.2 °C and averaged 10.8 °C. There was 7.7 hours of sunshine (53%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
February 21 » The CND symbol, aka peace symbol, commissioned by the Direct Action Committee in protest against the Atomic Weapons Research Establishment, is designed and completed by Gerald Holtom.
March 16 » The Ford Motor Company produces its 50 millionth automobile, the Thunderbird, averaging almost a million cars a year since the company's founding.
May 13 » May 1958 crisis: A group of French military officers lead a coup in Algiers demanding that a government of national unity be formed with Charles de Gaulle at its head in order to defend French control of Algeria.
July 25 » The African Regroupment Party holds its first congress in Cotonou.
September 14 » The first two German post-war rockets, designed by the German engineer Ernst Mohr, reach the upper atmosphere.
December 28 » "Greatest Game Ever Played": Baltimore Colts defeat the New York Giants in the first ever National Football League sudden death overtime game at New York's Yankee Stadium.
Day of death November 7, 1969
The temperature on November 7, 1969 was between -0.2 °C and 6.0 °C and averaged 2.9 °C. There was 3.1 mm of rain during 6.2 hours. The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
April 7 » The Internet's symbolic birth date: Publication of RFC 1.
April 9 » The first British-built Concorde 002 makes its maiden flight from Filton to RAF Fairford.
July 19 » Chappaquiddick incident: U.S. Senator Ted Kennedy crashes his car into a tidal pond at Chappaquiddick Island, Massachusetts, killing his passenger Mary Jo Kopechne.
August 15 » The Woodstock Music & Art Fair opens in upstate New York, featuring some of the top rock musicians of the era.
November 12 » Vietnam War: Independent investigative journalist Seymour Hersh breaks the story of the My Lai Massacre.
December 17 » Project Blue Book: The United States Air Force closes its study of UFOs.
When copying data from this family tree, please include a reference to the origin: Gert Pieters, "Family tree Koops", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koops/I877.php : accessed January 3, 2026), "Hendrik Spijkerman (1890-1969)".
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