April 5 » Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
July 19 » The first line of the Paris Métro opens for operation.
July 29 » In Italy, King Umberto I of Italy is assassinated by the anarchist Gaetano Bresci.
September 17 » Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham Jr. at Mabitac.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
December 18 » The Upper Ferntree Gully to Gembrook, Victoria Narrow-gauge (2ft 6 in or 762mm) Railway (now the Puffing Billy Railway) in Victoria, Australia is opened for traffic.
Day of death July 21, 1900
The temperature on July 21, 1900 was about 24.6 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 76%. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Willem Hendrik van der Leek, "Family tree Van der Leek", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-der-leek/I9516.php : accessed June 14, 2024), "Cornelia Maria Francina de Vos (1900-1900)".
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