The temperature on October 21, 1909 was between 10.0 °C and 14.3 °C and averaged 12.2 °C. There was 0.6 hours of sunshine (6%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 20 » Publication of the Futurist Manifesto in the French journal Le Figaro.
March 4 » U.S. President William Taft used what became known as a Saxbe fix, a mechanism to avoid the restriction of the U.S. Constitution's Ineligibility Clause, to appoint Philander C. Knox as U.S. Secretary of State.
March 10 » By signing the Anglo-Siamese Treaty of 1909, Thailand relinquishes its sovereignty over the Malay states of Kedah, Kelantan, Perlis and Terengganu, which become British protectorates.
April 18 » Joan of Arc is beatified in Rome.
June 26 » The Science Museum in London comes into existence as an independent entity.
August 19 » The first automobile race at the Indianapolis Motor Speedway.
Day of death February 4, 1910
The temperature on February 4, 1910 was between -1.9 °C and 2.9 °C and averaged 0.9 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 15 » Construction ends on the Buffalo Bill Dam in Wyoming, United States, which was the highest dam in the world at the time, at 325ft (99m).
March 8 » French aviator Raymonde de Laroche becomes the first woman to receive a pilot's license.
April 12 » SMSZrínyi, one of the last pre-dreadnought battleships built by the Austro-Hungarian Navy, is launched.
June 25 » Igor Stravinsky's ballet The Firebird is premiered in Paris, bringing him to prominence as a composer.
July 4 » The Johnson–Jeffries riots occur after African-American boxer Jack Johnson knocks out white boxer Jim Jeffries in the 15th round. Between 11 and 26 people are killed and hundreds more injured.
September 26 » Indian journalist Swadeshabhimani Ramakrishna Pillai is arrested after publishing criticism of the government of Travancore and is exiled.
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/I168455.php : accessed December 26, 2025), "Jan de Swart (1909-1910)".
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