January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
October 9 » The Cook Islands become a territory of the United Kingdom.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of death June 18, 1900
The temperature on June 18, 1900 was about 18.7 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 67%. Source: KNMI
February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
April 14 » The Exposition Universelle begins.
July 9 » The Governor of Shanxi province in North China orders the execution of 45 foreign Christian missionaries and local church members, including children.
July 19 » The first line of the Paris Métro opens for operation.
August 3 » The Firestone Tire and Rubber Company is founded.
October 25 » The United Kingdom annexes the Transvaal.
When copying data from this family tree, please include a reference to the origin: Wilma During, "Family tree During, van der Kolk, van den Bosch, Prins, Stegeman, Molenaar, Bos", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-during/R1776.php : accessed January 8, 2026), "Johanna During (1900-1900)".
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