February 24 » Revolution breaks out in Baire, a town near Santiago de Cuba, beginning the Cuban War of Independence, that ends with the Spanish–American War in 1898.
April 24 » Joshua Slocum, the first person to sail single-handedly around the world, sets sail from Boston, Massachusetts aboard the sloop "Spray".
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
October 4 » Horace Rawlins wins the first U.S. Open Men's Golf Championship.
October 8 » Korean Empress Myeongseong is assassinated by Japanese infiltrators.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of marriage May 4, 1917
The temperature on May 4, 1917 was between 6.4 °C and 24.3 °C and averaged 16.0 °C. There was 12.0 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
March 1 » The Zimmermann Telegram is reprinted in newspapers across the United States after the U.S. government releases its unencrypted text.
March 4 » Jeannette Rankin of Montana becomes the first female member of the United States House of Representatives.
March 8 » The United States Senate votes to limit filibusters by adopting the cloture rule.
May 21 » The Imperial War Graves Commission is established through royal charter to mark, record, and maintain the graves and places of commemoration of the British Empire's military forces.
May 26 » Several powerful tornadoes rip through Illinois, including the city of Mattoon.
October 25 » Old Style date of the October Revolution in Russia.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I38252.php : accessed January 30, 2026), "Willempje Koetsier (1895-????)".
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