February 27 » King George I of Greece survives an assassination attempt.
May 1 » Spanish–American War: Battle of Manila Bay: The Asiatic Squadron of the United States Navy destroys the Pacific Squadron of the Spanish Navy after a seven-hour battle. Spain loses all seven of its ships, and 381 Spanish sailors die. There are no American vessel losses or combat deaths.
May 8 » The first games of the Italian football league system are played.
June 12 » Philippine Declaration of Independence: General Emilio Aguinaldo declares the Philippines' independence from Spain.
June 27 » The first solo circumnavigation of the globe is completed by Joshua Slocum from Briar Island, Nova Scotia.
December 26 » Marie and Pierre Curie announce the isolation of radium.
Day of death October 15, 1921
The temperature on October 15, 1921 was between 3.2 °C and 16.5 °C and averaged 9.7 °C. There was 4.4 hours of sunshine (41%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
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 16 » The Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa.
February 12 » Bolsheviks launch a revolt in Georgia as a preliminary to the Red Army invasion of Georgia.
February 27 » The International Working Union of Socialist Parties is founded in Vienna.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
July 11 » A truce in the Irish War of Independence comes into effect.
October 13 » Soviet republics sign the Treaty of Kars to formalize the borders between Turkey and the South Caucasus states.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I22337.php : accessed February 18, 2026), "Antonie Heijnen (1867-1921)".
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