The temperature on August 15, 1917 was between 13.1 °C and 20.2 °C and averaged 15.6 °C. There was 0.5 mm of rain. There was 6.8 hours of sunshine (46%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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.
January 31 » World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
March 11 » World War I: Mesopotamian campaign: Baghdad falls to Anglo-Indian forces commanded by General Stanley Maude.
July 12 » The Bisbee Deportation occurs as vigilantes kidnap and deport nearly 1,300 striking miners and others from Bisbee, Arizona.
October 13 » The "Miracle of the Sun" is witnessed by an estimated 70,000 people in the Cova da Iria in Portugal.
December 11 » World War I: British General Edmund Allenby enters Jerusalem on foot and declares martial law.
December 18 » The resolution containing the language of the Eighteenth Amendment to enact Prohibition is passed by the United States Congress.
Day of death December 31, 1936
The temperature on December 31, 1936 was between -0.5 °C and 6.7 °C and averaged 2.4 °C. There was 0.2 mm of rain. There was 5.7 hours of sunshine (73%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
June 11 » The London International Surrealist Exhibition opens.
June 15 » First flight of the Vickers Wellington bomber.
June 28 » The Japanese puppet state of Mengjiang is formed in northern China.
July 19 » Spanish Civil War: The CNT and UGT call a general strike in Spain - mobilizing workers' militias against the Nationalist forces.
July 20 » The Montreux Convention is signed in Switzerland, authorizing Turkey to fortify the Dardanelles and Bosphorus but guaranteeing free passage to ships of all nations in peacetime.
August 24 » The Australian Antarctic Territory is created.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I532292.php : accessed February 6, 2026), "Johan Christoph Penning (± 1877-1936)".
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