The temperature on December 31, 1910 was between 1.0 °C and 5.9 °C and averaged 3.8 °C. There was 0.2 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
February 8 » The Boy Scouts of America is incorporated by William D. Boyce.
June 2 » Charles Rolls, a co-founder of Rolls-Royce Limited, becomes the first man to make a non-stop double crossing of the English Channel by plane.
June 17 » Aurel Vlaicu pilots an A. Vlaicu nr. 1 on its first flight.
June 25 » Igor Stravinsky's ballet The Firebird is premiered in Paris, bringing him to prominence as a composer.
August 29 » The Japan–Korea Treaty of 1910, also known as the Japan–Korea Annexation Treaty, becomes effective, officially starting the period of Japanese rule in Korea.
September 12 » Premiere performance of Gustav Mahler's Symphony No. 8 in Munich (with a chorus of 852 singers and an orchestra of 171 players. Mahler's rehearsal assistant conductor was Bruno Walter).
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I24233.php : accessed February 19, 2026), "Jan Boonstra (± 1889-????)".
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