The temperature on June 2, 1910 was between 10.7 °C and 21.1 °C and averaged 14.7 °C. There was 11.7 mm of rain. There was 3.3 hours of sunshine (20%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. 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 3 » Rockefeller Foundation: John D. Rockefeller Jr. announces his retirement from managing his businesses so that he can devote all his time to philanthropy.
June 25 » Igor Stravinsky's ballet The Firebird is premiered in Paris, bringing him to prominence as a composer.
June 25 » The United States Congress passes the Mann Act, which prohibits interstate transport of women or girls for “immoral purposes”; the ambiguous language would be used to selectively prosecute people for years to come.
July 16 » John Robertson Duigan makes the first flight of the Duigan pusher biplane, the first aircraft built in Australia.
December 3 » Modern neon lighting is first demonstrated by Georges Claude at the Paris Motor Show.
When copying data from this family tree, please include a reference to the origin: Wim de Vries, "Family tree Kaempff", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaempff/I836.php : accessed February 19, 2026), "Johanna Regina Woudstra (1910-)".
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