February 9 » The Davis Cup competition is established.
February 27 » Fußball-Club Bayern München is founded.
February 27 » The British Labour Party is founded.
June 21 » Boxer Rebellion. China formally declares war on the United States, Britain, Germany, France and Japan, as an edict issued from the Empress Dowager Cixi.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death November 23, 1900
The temperature on November 23, 1900 was about 5.4 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 92%. Source: KNMI
January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
March 14 » The Gold Standard Act is ratified, placing the United States currency on the gold standard.
April 5 » Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
April 30 » Hawaii becomes a territory of the United States, with Sanford B. Dole as governor.
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.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
When copying data from this family tree, please include a reference to the origin: Arie Verloop, "Family tree Verloop", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-verloop/I5183.php : accessed October 1, 2026), "Johanna Appolonia VERLOOP (1900-1900)".
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