March 4 » Cyclone Mahina sweeps in north of Cooktown, Queensland, with a 12 metres (39ft) wave that reaches up to 5 kilometres (3.1mi) inland, killing over 300.
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 17 » NEC Corporation is organized as the first Japanese joint venture with foreign capital.
July 29 » The First Hague Convention is signed.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
October 11 » The Second Boer War erupts in South Africa between the British-ruled Cape Colony, and the Boer-ruled Transvaal and Orange Free State.
Day of death July 23, 1900
The temperature on July 23, 1900 was about 18.4 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 81%. Source: KNMI
February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
March 14 » The Gold Standard Act is ratified, placing the United States currency on the gold standard.
April 2 » The United States Congress passes the Foraker Act, giving Puerto Rico limited self-rule.
May 23 » American Civil War: Sergeant William Harvey Carney is awarded the Medal of Honor for his heroism in the Assault on the Battery Wagner in 1863.
July 9 » The Federation of Australia is given royal assent.
November 7 » Second Boer War: Battle of Leliefontein, a battle during which the Royal Canadian Dragoons win three Victoria Crosses.
When copying data from this family tree, please include a reference to the origin: Peter Wolf, "Family tree Wolf", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-peter-wolf/I947.php : accessed March 18, 2026), "Willem Appeldoorn (1899-1900)".
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