March 7 » The German liner SSKaiser Wilhelm der Grosse becomes the first ship to send wireless signals to shore.
May 29 » N'Djamena is founded as Fort-Lamy by the French commander Émile Gentil.
June 17 » Boxer Rebellion: Western Allied and Japanese forces capture the Taku Forts in Tianjin, China.
July 9 » The Governor of Shanxi province in North China orders the execution of 45 foreign Christian missionaries and local church members, including children.
October 19 » Max Planck discovers Planck's law of black-body radiation.
November 7 » Second Boer War: Battle of Leliefontein, a battle during which the Royal Canadian Dragoons win three Victoria Crosses.
Day of death September 9, 1900
The temperature on September 9, 1900 was about 11.8 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 98%. Source: KNMI
When copying data from this family tree, please include a reference to the origin: J. Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_jacobs/I1631.php : accessed January 27, 2026), "Johannes Martinus Jacobs (1900-1900)".
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