The temperature on July 25, 1910 was between 11.1 °C and 16.7 °C and averaged 13.7 °C. There was 30.6 mm of rain. There was 1.6 hours of sunshine (10%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south. Source: KNMI
May 6 » George V becomes King of Great Britain, Ireland, and many overseas territories, on the death of his father, Edward VII.
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.
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).
October 22 » Hawley Harvey Crippen (the first felon to be arrested with the help of radio) is convicted of poisoning his wife.
November 21 » Sailors on board Brazil's warships including the Minas Gerais, São Paulo, and Bahia, violently rebel in what is now known as the Revolta da Chibata (Revolt of the Lash).
Day of marriage September 12, 1938
The temperature on September 12, 1938 was between 13.8 °C and 18.8 °C and averaged 15.7 °C. There was 0.5 mm of rain during 0.9 hours. There was 0.6 hours of sunshine (5%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 28 » The World Land Speed Record on a public road is broken by Rudolf Caracciola in the Mercedes-Benz W195 at a speed of 432.7 kilometres per hour (268.9mph).
April 25 » U.S. Supreme Court delivers its opinion in Erie Railroad Co. v. Tompkins and overturns a century of federal common law.
July 31 » Archaeologists discover engraved gold and silver plates from King Darius the Great in Persepolis.
October 1 » Germany annexes the Sudetenland.
November 14 » The Lions Gate Bridge, connecting Vancouver to the North Shore region, opens to traffic.
December 13 » The Holocaust: The Neuengamme concentration camp opens in the Bergedorf district of Hamburg, Germany.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I151502.php : accessed January 24, 2026), "Willem de Heer (1910-)".
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