The temperature on October 1, 1911 was between 5.2 °C and 14.1 °C and averaged 9.6 °C. There was 12.7 mm of rain. There was 5.1 hours of sunshine (44%). The average windspeed was 6 Bft (strong wind) and was prevailing from the north-northwest. Source: KNMI
January 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
Day of death April 1, 1986
The temperature on April 1, 1986 was between -0.1 °C and 8.5 °C and averaged 4.9 °C. There was -0.1 mm of rain. There was 5.8 hours of sunshine (45%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
April 29 » A fire at the Central library of the City of Los Angeles Public Library damages or destroys 400,000 books and other items.
May 3 » Twenty-one people are killed and forty-one are injured after a bomb explodes on Air Lanka Flight 512 at Colombo airport in Sri Lanka.
September 23 » Houston Astros' Jim Deshaies sets a record, striking out the first eight batters he faces against the Los Angeles Dodgers.
October 19 » The president of Mozambique and a prominent leader of FRELIMO, along with 33 others, die when their aircraft crashes into the Lebombo Mountains.
November 26 » The trial of John Demjanjuk, accused of committing war crimes as a guard at the Nazi Treblinka extermination camp, starts in Jerusalem.
December 23 » Voyager, piloted by Dick Rutan and Jeana Yeager, lands at Edwards Air Force Base in California becoming the first aircraft to fly non-stop around the world without aerial or ground refueling.
When copying data from this family tree, please include a reference to the origin: Johan Vanoplynes, "Family tree Vanoplynes", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-vanoplynes/I577861.php : accessed February 27, 2026), "Arthur Deman (1911-1986)".
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