March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
March 22 » Before the Société pour L'Encouragement à l'Industrie, brothers Auguste and Louis Lumière demonstrate movie film technology publicly for the first time.
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
June 28 » The United States Court of Private Land Claims rules James Reavis’s claim to Barony of Arizona is "wholly fictitious and fraudulent."
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
December 28 » The Lumière brothers perform for their first paying audience at the Grand Cafe in Boulevard des Capucines.
Day of marriage December 24, 1917
The temperature on December 24, 1917 was between -4.5 °C and 4.9 °C and averaged 0.7 °C. There was 2.1 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. 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 19 » Silvertown explosion: A blast at a munitions factory in London kills 73 and injures over 400. The resulting fire causes over £2,000,000 worth of damage.
February 5 » The Congress of the United States passes the Immigration Act of 1917 over President Woodrow Wilson's veto.
March 31 » According to the terms of the Treaty of the Danish West Indies, the islands become American possessions.
May 21 » The Great Atlanta fire of 1917 causes $5.5million in damages, destroying some 300 acres including 2,000 homes, businesses and churches, displacing about 10,000 people but leading to only one fatality (due to heart attack).
July 31 » World War I: The Battle of Passchendaele begins near Ypres in West Flanders, Belgium.
November 20 » World War I: Battle of Cambrai begins: British forces make early progress in an attack on German positions but are later pushed back.
Day of death December 16, 1975
The temperature on December 16, 1975 was between -7.8 °C and 0.1 °C and averaged -4.2 °C. There was -0.1 mm of rain. There was 6.5 hours of sunshine (84%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 2 » The Federal Rules of Evidence are approved by the United States Congress.
March 25 » Faisal of Saudi Arabia is shot and killed by a mentally ill nephew.
April 25 » As North Vietnamese forces close in on the South Vietnamese capital Saigon, the Australian Embassy is closed and evacuated, almost ten years to the day since the first Australian troop commitment to South Vietnam.
May 10 » Sony introduces the Betamax videocassette recorder.
June 25 » Prime Minister Indira Gandhi declares a state of internal emergency in India.
July 5 » Arthur Ashe becomes the first black man to win the Wimbledon singles title.
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/I79471.php : accessed October 18, 2026), "Evert Koopmans (1895-1975)".
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