The temperature on December 15, 1911 was between 3.0 °C and 8.9 °C and averaged 5.7 °C. There was 1.8 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
May 15 » More than 300 Chinese immigrants are killed in the Torreón massacre when the forces of the Mexican Revolution led by Emilio Madero take the city of Torreón from the Federales.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
Day of death July 18, 1914
The temperature on July 18, 1914 was between 9.7 °C and 22.9 °C and averaged 17.8 °C. There was 11.4 hours of sunshine (70%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 1 » The Republic of China joins the Universal Postal Union.
April 24 » The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
August 29 » World War I: Start of the Battle of St. Quentin in which the French Fifth Army counter-attacked the invading Germans at Saint-Quentin, Aisne.
September 1 » St. Petersburg, Russia, changes its name to Petrograd.
November 13 » Zaian War: Berber tribesmen inflict the heaviest defeat of French forces in Morocco at the Battle of El Herri.
December 24 » World War I: The "Christmas truce" begins.
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/I201413.php : accessed December 26, 2025), "Harmen Sliep (1911-1914)".
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