February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
May 17 » Second Boer War: British troops relieve Mafeking.
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.
August 14 » The Eight-Nation Alliance occupies Beijing, China, in a campaign to end the bloody Boxer Rebellion in China.
November 7 » The People's Party is founded in Cuba.
Day of death June 23, 1901
The temperature on June 23, 1901 was between 12.8 °C and 22.0 °C and averaged 17.8 °C. There was 10.2 hours of sunshine (61%). Source: KNMI
April 25 » New York becomes the first U.S. state to require automobile license plates.
August 14 » The first claimed powered flight, by Gustave Whitehead in his Number 21.
September 6 » Leon Czolgosz, an unemployed anarchist, shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York.
October 29 » In Amherst, Massachusetts, nurse Jane Toppan is arrested for murdering the Davis family of Boston with an overdose of morphine.
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/I90299.php : accessed September 29, 2026), "Willem Slopsema (1900-1901)".
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