February 27 » King George I of Greece survives an assassination attempt.
April 21 » Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
August 25 » Seven hundred Greek civilians, 17 British guards and the British Consul of Crete are killed by a Turkish mob in Heraklion, Greece.
September 10 » Empress Elisabeth of Austria is assassinated by Luigi Lucheni.
September 21 » Empress Dowager Cixi seizes power and ends the Hundred Days' Reform in China.
December 26 » Marie and Pierre Curie announce the isolation of radium.
Day of death November 17, 1899
The temperature on November 17, 1899 was about 7.1 °C. The airpressure was 78 cm mercury. The atmospheric humidity was 83%. Source: KNMI
January 17 » The United States takes possession of Wake Island in the Pacific Ocean.
January 19 » Anglo-Egyptian Sudan is formed.
February 4 » The Philippine–American War begins with the Battle of Manila.
March 27 » Emilio Aguinaldo leads Filipino forces for the only time during the Philippine–American War at the Battle of Marilao River.
November 28 » The Second Boer War: a British column is engaged by Boer forces at the Battle of Modder River; although the Boers withdraw, the British suffer heavy casualties.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
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/I135218.php : accessed October 23, 2026), "Siebe Helmsma (1898-1899)".
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