The temperature on June 30, 1911 was between 11.3 °C and 15.8 °C and averaged 13.7 °C. There was 6.1 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
Day of death May 1, 1986
The temperature on May 1, 1986 was between 3.2 °C and 20.0 °C and averaged 13.3 °C. There was 11.8 hours of sunshine (79%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. 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.
January 11 » The Gateway Bridge, Brisbane, Queensland, Australia is officially opened.
February 20 » The Soviet Union launches its Mir spacecraft. Remaining in orbit for 15 years, it is occupied for ten of those years.
May 26 » The European Community adopts the European flag.
June 14 » The Mindbender derails and kills three riders at the Fantasyland (known today as Galaxyland) indoor amusement park in Edmonton, Alberta.
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.
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/I115071.php : accessed February 13, 2026), "Anna Maria Sybilla Stijnen (1911-1986)".
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