January 23 » The Malolos Constitution is inaugurated, establishing the First Philippine Republic. Emilio Aguinaldo is sworn in as its first President.
February 14 » Voting machines are approved by the U.S. Congress for use in federal elections.
February 22 » Filipino forces led by General Antonio Luna launch counterattacks for the first time against the American forces during the Philippine–American War. The Filipinos fail to regain Manila from the Americans.
March 31 » Malolos, capital of the First Philippine Republic, is captured by American forces.
April 18 » The St. Andrew's Ambulance Association is granted a royal charter by Queen Victoria.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of marriage July 12, 1917
The temperature on July 12, 1917 was between 7.0 °C and 21.6 °C and averaged 15.4 °C. There was 13.5 hours of sunshine (82%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. 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 17 » The United States pays Denmark $25 million for the Virgin Islands.
February 23 » First demonstrations in Saint Petersburg, Russia. The beginning of the February Revolution (March 8 in the Gregorian calendar).
April 12 » World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.
June 23 » In a game against the Washington Senators, Boston Red Sox pitcher Ernie Shore retires 26 batters in a row after replacing Babe Ruth, who had been ejected for punching the umpire.
June 26 » World War I: The American Expeditionary Forces begin to arrive in France. They will first enter combat four months later.
November 5 » Tikhon is elected the Patriarch of Moscow and of the Russian Orthodox Church.
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/I196053.php : accessed December 30, 2025), "Rigtje Kuperis (1899-????)".
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