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.
February 7 » A Chinese immigrant in San Francisco falls ill to bubonic plague in the first plague epidemic in the continental United States.
April 5 » Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
April 14 » The Exposition Universelle begins.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
November 7 » Second Boer War: Battle of Leliefontein, a battle during which the Royal Canadian Dragoons win three Victoria Crosses.
Day of death June 12, 1900
The temperature on June 12, 1900 was about 23.2 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 53%. Source: KNMI
January 6 » Second Boer War: Having already besieged the fortress at Ladysmith, Boer forces attack it, but are driven back by British defenders.
February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
February 23 » Second Boer War: During the Battle of the Tugela Heights, the first British attempt to take Hart's Hill fails.
April 2 » The United States Congress passes the Foraker Act, giving Puerto Rico limited self-rule.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
December 19 » Hopetoun Blunder: The first Governor-General of Australia John Hope, 7th Earl of Hopetoun, appoints Sir William Lyne premier of the new state of New South Wales, but he is unable to persuade other colonial politicians to join his government and is forced to resign.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I107905.php : accessed October 18, 2026), "Janke de Haan (1900-1900)".
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