February 27 » The British Labour Party is founded.
April 5 » Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
May 17 » Second Boer War: British troops relieve Mafeking.
May 22 » The Associated Press is formed in New York City as a non-profit news cooperative.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death February 1, 1900
The temperature on February 1, 1900 was about -2.7 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 83%. Source: KNMI
January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 7 » A Chinese immigrant in San Francisco falls ill to bubonic plague in the first plague epidemic in the continental United States.
March 24 » Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
June 5 » Second Boer War: British soldiers take Pretoria.
June 14 » The second German Naval Law calls for the Imperial German Navy to be doubled in size, resulting in an Anglo-German naval arms race.
November 7 » Second Boer War: Battle of Leliefontein, a battle during which the Royal Canadian Dragoons win three Victoria Crosses.
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/I166822.php : accessed October 25, 2026), "Pieter Jansma (1900-1900)".
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