January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
May 18 » The United Kingdom proclaims a protectorate over Tonga.
May 22 » The Associated Press is formed in New York City as a non-profit news cooperative.
May 29 » N'Djamena is founded as Fort-Lamy by the French commander Émile Gentil.
August 16 » The Battle of Elands River during the Second Boer War ends after a 13-day siege is lifted by the British. The battle had begun when a force of between 2,000 and 3,000 Boers had surrounded a force of 500 Australians, Rhodesians, Canadians and British soldiers at a supply dump at Brakfontein Drift.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death February 19, 1900
The temperature on February 19, 1900 was about 7.4 °C. The airpressure was 74 cm mercury. The atmospheric humidity was 94%. Source: KNMI
January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
April 15 » Philippine–American War: Filipino guerrillas launch a surprise attack on U.S. infantry and begin a four-day siege of Catubig, Philippines.
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.
July 9 » The Governor of Shanxi province in North China orders the execution of 45 foreign Christian missionaries and local church members, including children.
October 25 » The United Kingdom annexes the Transvaal.
November 7 » The People's Party is founded in Cuba.
When copying data from this family tree, please include a reference to the origin: Johanna Lodewijks, "Family tree Dusseljee", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-dusseljee/I5823.php : accessed February 2, 2026), "Gezinus Dussel (1900-1900)".
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