The temperature on August 15, 1910 was between 10.9 °C and 22.7 °C and averaged 16.8 °C. There was 7.7 hours of sunshine (52%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
February 8 » The Boy Scouts of America is incorporated by William D. Boyce.
June 25 » Igor Stravinsky's ballet The Firebird is premiered in Paris, bringing him to prominence as a composer.
July 16 » John Robertson Duigan makes the first flight of the Duigan pusher biplane, the first aircraft built in Australia.
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).
October 6 » Eleftherios Venizelos is elected prime minister of Greece for the first of seven times.
December 21 » An underground explosion at the Hulton Bank Colliery No. 3 Pit in Over Hulton, Westhoughton, England, kills 344 miners.
Day of marriage May 16, 1935
The temperature on May 16, 1935 was between 0.4 °C and 12.0 °C and averaged 6.0 °C. There was 0.5 mm of rain during 1.2 hours. There was 7.7 hours of sunshine (49%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
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/I118546.php : accessed February 12, 2026), "Tjeerd de Haan (1910-)".
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