The temperature on April 20, 1916 was between 4.9 °C and 10.6 °C and averaged 6.7 °C. There was 8.9 mm of rain. There was 2.8 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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.
February 24 » The Governor-General of Korea establishes a clinic called Jahyewon in Sorokdo to segregate Hansen's disease patients.
April 20 » The Chicago Cubs play their first game at Weeghman Park (currently Wrigley Field), defeating the Cincinnati Reds 7–6 in 11 innings.
May 31 » World War I: Battle of Jutland: The British Grand Fleet engages the High Seas Fleet in the largest naval battle of the war, which proves indecisive.
June 1 » Louis Brandeis becomes the first Jew appointed to the United States Supreme Court.
September 17 » World War I: Manfred von Richthofen ("The Red Baron"), a flying ace of the German Luftstreitkräfte, wins his first aerial combat near Cambrai, France.
October 16 » Margaret Sanger opens the first family planning clinic in the United States.
When copying data from this family tree, please include a reference to the origin: Hans Pruckmuller, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/van-willigen-stamboom/I1757.php : accessed January 29, 2026), "Jan de Willigen (1850-1916)".
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