February 1 » Fountains Valley, Pretoria, the oldest nature reserve in Africa, is proclaimed by President Paul Kruger.
April 6 » Oscar Wilde is arrested in the Cadogan Hotel, London, after losing a libel case against the Marquess of Queensberry.
April 17 » The Treaty of Shimonoseki between China and Japan is signed. This marks the end of the First Sino-Japanese War, and the defeated Qing Empire is forced to renounce its claims on Korea and to concede the southern portion of the Fengtien province, Taiwan and the Pescadores Islands to Japan.
June 27 » The inaugural run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives.
June 28 » The United States Court of Private Land Claims rules James Reavis’s claim to Barony of Arizona is "wholly fictitious and fraudulent."
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
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.
February 24 » World War I: The U.S. ambassador Walter Hines Page to the United Kingdom is given the Zimmermann Telegram, in which Germany pledges to ensure the return of New Mexico, Texas, and Arizona to Mexico if Mexico declares war on the United States.
March 8 » International Women's Day protests in St. Petersburg mark the beginning of the February Revolution (February 23rd in the Julian calendar).
April 2 » World War I: United States President Woodrow Wilson asks the U.S. Congress for a declaration of war on Germany.
April 12 » World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.
May 26 » Several powerful tornadoes rip through Illinois, including the city of Mattoon.
December 6 » World War I: USSJacob Jones is the first American destroyer to be sunk by enemy action when it is torpedoed by German submarine SMU-53.
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.
February 5 » Riots break in Lima, Peru after the police forces go on strike the day before. The uprising (locally known as the Limazo) is bloodily suppressed by the military dictatorship.
April 13 » An attack by the Phalangist resistance kills 26 militia members of the Popular Front for the Liberation of Palestine, marking the start of the 15-year Lebanese Civil War.
June 4 » The Governor of California Jerry Brown signs the California Agricultural Labor Relations Act into law, the first law in the U.S. giving farmworkers collective bargaining rights.
July 5 » Arthur Ashe becomes the first black man to win the Wimbledon singles title.
August 14 » The Rocky Horror Picture Show, the longest-running release in film history, opens in London.
November 22 » Juan Carlos is declared King of Spain following the death of Francisco Franco.
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 8, 2026), "Evert Koopmans (1895-1975)".
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