January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
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.
March 7 » The German liner SSKaiser Wilhelm der Grosse becomes the first ship to send wireless signals to shore.
May 17 » The children's novel The Wonderful Wizard of Oz, by L. Frank Baum, is first published in the United States. The first copy is given to the author's sister.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of death February 17, 1921
The temperature on February 17, 1921 was between -2.0 °C and 8.4 °C and averaged 3.5 °C. There was 0.2 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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 9 » Greco-Turkish War: The First Battle of İnönü, the first battle of the war, begins near Eskişehir in Anatolia.
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.
March 18 » The Kronstadt rebellion is suppressed by the Red Army.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
July 23 » The Communist Party of China (CPC) is established at the founding National Congress.
October 5 » The World Series is the first to be broadcast on radio.
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/I69179.php : accessed February 19, 2026), "Dirk van Loo (1900-1921)".
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