April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of death January 27, 1900
The temperature on January 27, 1900 was about 3.7 °C. The airpressure was 75 cm mercury. The atmospheric humidity was 88%. Source: KNMI
January 23 » Second Boer War: The Battle of Spion Kop between the forces of the South African Republic and the Orange Free State and British forces ends in a British defeat.
February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
May 17 » Second Boer War: British troops relieve Mafeking.
October 19 » Max Planck discovers Planck's law of black-body radiation.
November 7 » The People's Party is founded in Cuba.
When copying data from this family tree, please include a reference to the origin: W.J.G. Eussen, "Family tree Eussen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eussen/I280.php : accessed September 26, 2026), "Maria Catharina EUSSEN (1897-1900)".
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