The temperature on May 8, 1910 was between 2.4 °C and 11.1 °C and averaged 6.3 °C. There was 0.8 mm of rain. There was 6.5 hours of sunshine (43%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
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.
July 16 » John Robertson Duigan makes the first flight of the Duigan pusher biplane, the first aircraft built in Australia.
August 22 » Korea is annexed by Japan with the signing of the Japan–Korea Treaty of 1910, beginning a period of Japanese rule of Korea that lasted until the end of World War II.
October 1 » A large bomb destroys the Los Angeles Times building, killing 21.
October 11 » Piloted by Arch Hoxsey, Theodore Roosevelt becomes the first U.S. president to fly in an airplane.
November 7 » The first air freight shipment (from Dayton, Ohio, to Columbus, Ohio) is undertaken by the Wright brothers and department store owner Max Moorehouse.
Day of death January 27, 1936
The temperature on January 27, 1936 was between 1.3 °C and 7.3 °C and averaged 4.4 °C. There was 1.9 hours of sunshine (22%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
March 16 » Warmer-than-normal temperatures rapidly melt snow and ice on the upper Allegheny and Monongahela rivers, leading to a major flood in Pittsburgh.
May 28 » Alan Turing submits On Computable Numbers for publication.
October 9 » Boulder Dam (later Hoover Dam) begins to generate electricity and transmit it to Los Angeles.
October 26 » The first electric generator at Hoover Dam goes into full operation.
November 30 » In London, the Crystal Palace is destroyed by fire.
December 5 » The Soviet Union adopts a new constitution and the Kirghiz Soviet Socialist Republic is established as a full Union Republic of the USSR.
When copying data from this family tree, please include a reference to the origin: Theo Kelner, "Family tree Kelner", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kelner/I1044.php : accessed February 4, 2026), "Dirk Koomen (1890-1936)".
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