The temperature on May 14, 1905 was between 3.7 °C and 15.0 °C and averaged 10.1 °C. There was 13.2 hours of sunshine (85%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
April 4 » In India, an earthquake hits the Kangra Valley, killing 20,000, and destroying most buildings in Kangra, McLeod Ganj and Dharamshala.
April 17 » The Supreme Court of the United States decides Lochner v. New York, which holds that the "right to free contract" is implicit in the due process clause of the Fourteenth Amendment to the United States Constitution.
August 13 » Norwegians vote to end the union with Sweden.
August 20 » Sun Yat-sen, Chinese revolutionary, forms the first chapter of T'ung Meng Hui, a union of all secret societies determined to bringing down the Manchus.
November 12 » Norway holds a referendum resulting in popular approval of the Storting's decision to authorise the government to make the offer of the throne of the newly independent country.
November 25 » Prince Carl of Denmark arrives in Norway to become King Haakon VII of Norway.
Day of death July 11, 1986
The temperature on July 11, 1986 was between 8.6 °C and 20.6 °C and averaged 14.6 °C. There was 8.6 hours of sunshine (52%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-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.
January 13 » A month-long violent struggle begins in Aden, South Yemen between supporters of Ali Nasir Muhammad and Abdul Fattah Ismail, resulting in thousands of casualties.
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.
June 14 » The Mindbender derails and kills three riders at the Fantasyland (known today as Galaxyland) indoor amusement park in Edmonton, Alberta.
June 22 » The famous Hand of God goal, scored by Diego Maradona in the quarter-finals of the 1986 FIFA World Cup match between Argentina and England, ignites controversy. This was later followed by the Goal of the Century. Argentina wins 2–1 and later goes on to win the World Cup.
July 9 » The New Zealand Parliament passes the Homosexual Law Reform Act legalising homosexuality in New Zealand.
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 Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I3508.php : accessed February 14, 2026), "Willebrorda Bernardina Wilhelmina Maria Siepkes (1905-1986)".
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