January 31 » Datu Muhammad Salleh is killed in Kampung Teboh, Tambunan, ending the Mat Salleh Rebellion.
February 7 » A Chinese immigrant in San Francisco falls ill to bubonic plague in the first plague epidemic in the continental United States.
February 18 » Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.
May 22 » The Associated Press is formed in New York City as a non-profit news cooperative.
May 23 » American Civil War: Sergeant William Harvey Carney is awarded the Medal of Honor for his heroism in the Assault on the Battery Wagner in 1863.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of death April 25, 1918
The temperature on April 25, 1918 was between 7.3 °C and 18.2 °C and averaged 12.1 °C. There was 2.0 mm of rain. There was 4.9 hours of sunshine (34%). 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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 12 » The Minnie Pit Disaster coal mining accident occurs in Halmer End, Staffordshire, in which 155 men and boys die.
March 31 » Daylight saving time goes into effect in the United States for the first time.
May 26 » The Democratic Republic of Georgia is established.
August 13 » Women enlist in the United States Marine Corps for the first time. Opha May Johnson is the first woman to enlist.
November 26 » The Montenegran Podgorica Assembly votes for a "union of the people", declaring assimilation into the Kingdom of Serbia.
December 4 » U.S. President Woodrow Wilson sails for the World War I peace talks in Versailles, becoming the first US president to travel to Europe while in office.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I16482.php : accessed January 26, 2026), "Hendrik Jan Gelderman (1900-1918)".
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