The temperature on November 27, 1911 was between -0.4 °C and 4.8 °C and averaged 1.1 °C. There was 1.6 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 3 » A gun battle in the East End of London left two dead and sparked a political row over the involvement of then-Home Secretary Winston Churchill.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
Day of marriage July 28, 1937
The temperature on July 28, 1937 was between 8.2 °C and 18.5 °C and averaged 14.2 °C. There was 0.5 mm of rain during 0.2 hours. There was 1.8 hours of sunshine (11%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
May 28 » Volkswagen, the German automobile manufacturer is founded.
May 30 » Memorial Day massacre: Chicago police shoot and kill ten labor demonstrators.
June 30 » The world's first emergency telephone number, 999, is introduced in London.
July 7 » The Marco Polo Bridge Incident provides the Imperial Japanese Army with a pretext for starting the Second Sino-Japanese War.
September 25 » Second Sino-Japanese War: The Chinese Eighth Route Army gains a minor, but morale-boosting victory in the Battle of Pingxingguan.
December 29 » The Irish Free State is replaced by a new state called Ireland with the adoption of a new constitution.
Day of death February 14, 1967
The temperature on February 14, 1967 was between -4.2 °C and 2.5 °C and averaged -1.4 °C. There was 7.9 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
March 14 » The body of U.S. President John F. Kennedy is moved to a permanent burial place at Arlington National Cemetery.
June 5 » The Six-Day War begins: Israel launches surprise strikes against Egyptian air-fields in response to the mobilisation of Egyptian forces on the Israeli border.
June 7 » Six-Day War: Israeli soldiers enter Jerusalem.
June 14 » Mariner program: Mariner 5 is launched towards Venus.
July 1 » Merger Treaty: The European Community is formally created out of a merger with the Common Market, the European Coal and Steel Community, and the European Atomic Energy Commission.
December 6 » Adrian Kantrowitz performs the first human heart transplant 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/I7034.php : accessed January 17, 2026), "Johannes Petrus Jacobus Arts (1911-1967)".
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