The temperature on August 1, 1909 was between 11.7 °C and 20.7 °C and averaged 15.7 °C. There was 6.0 mm of rain. There was 8.1 hours of sunshine (52%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
February 12 » New Zealand's worst maritime disaster of the 20th century happens when the SSPenguin, an inter-island ferry, sinks and explodes at the entrance to Wellington Harbour.
March 31 » Serbia formally withdraws its opposition to Austro-Hungarian actions in the Bosnian Crisis.
April 11 » The city of Tel Aviv is founded.
June 2 » Alfred Deakin becomes Prime Minister of Australia for the third time.
August 24 » Workers start pouring concrete for the Panama Canal.
August 30 » Burgess Shale fossils are discovered by Charles Doolittle Walcott.
Day of marriage May 18, 1927
The temperature on May 18, 1927 was between 2.2 °C and 17.1 °C and averaged 10.0 °C. There was 14.3 hours of sunshine (90%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 27 » Ibn Saud takes the title of King of Nejd.
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
April 12 » Shanghai massacre of 1927: Chiang Kai-shek orders the Chinese Communist Party members executed in Shanghai, ending the First United Front.
May 4 » The Academy of Motion Picture Arts and Sciences is incorporated.
May 18 » The Bath School disaster: Forty-five people, including many children, are killed by bombs planted by a disgruntled school-board member in Michigan.
December 27 » Kern and Hammerstein's musical play Show Boat, considered to be the first true American musical play, opens at the Ziegfeld Theatre on Broadway.
When copying data from this family tree, please include a reference to the origin: Leo Koster, "Family tree Koster / Coster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster-coster/I23167.php : accessed March 12, 2026), "Dirkje Touw (1909-)".
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