The temperature on August 3, 1911 was between 13.6 °C and 23.8 °C and averaged 19.0 °C. There was 3.5 hours of sunshine (23%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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.
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
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.
May 23 » The New York Public Library is dedicated.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
Day of death August 13, 1986
The temperature on August 13, 1986 was between 10.1 °C and 22.9 °C and averaged 16.9 °C. There was 10.3 hours of sunshine (69%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the northwest. 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 25 » Mswati III is crowned King of Swaziland, succeeding his father Sobhuza II.
April 27 » The city of Pripyat and surrounding areas are evacuated due to Chernobyl disaster.
April 29 » Chernobyl disaster: American and European spy satellites capture the ruins of the 4th Reactor at the Chernobyl Power Plant.
July 6 » Davis Phinney becomes the first American cyclist to win a road stage of the Tour de France.
October 10 » A 5.7 Mw San Salvador earthquake shakes El Salvador, killing 1,500.
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: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I200670.php : accessed January 11, 2026), "Pieterke Hillena Wierenga (1911-1986)".
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