February 4 » The Philippine–American War begins with the Battle of Manila.
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.
March 31 » Malolos, capital of the First Philippine Republic, is captured by American forces.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
Day of death February 9, 1900
The temperature on February 9, 1900 was about -8.4 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 88%. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Harry Westerman, "Family tree Westerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-westerman/X5632.php : accessed February 4, 2026), "Harmtje Heizenberg (1899-1900)".
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