February 4 » The Philippine–American War begins with the Battle of Manila.
March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
July 29 » The First Hague Convention is signed.
September 13 » Mackinder, Ollier and Brocherel make the first ascent of Batian (5,199 m - 17,058ft), the highest peak of Mount Kenya.
Day of death November 12, 1900
The temperature on November 12, 1900 was about 3.0 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 95%. Source: KNMI
February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
February 27 » The British Labour Party is founded.
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.
May 22 » The Associated Press is formed in New York City as a non-profit news cooperative.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
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/I99383.php : accessed October 22, 2026), "Teunis Wening (1899-1900)".
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