June 17 » The College Board introduces its first standardized test, the forerunner to the SAT.
August 10 » The U.S. Steel recognition strike by the Amalgamated Association of Iron and Steel Workers begins.
August 14 » The first claimed powered flight, by Gustave Whitehead in his Number 21.
September 7 » The Boxer Rebellion in Qing dynasty (modern-day China) officially ends with the signing of the Boxer Protocol.
October 12 » President Theodore Roosevelt officially renames the "Executive Mansion" to the White House.
October 29 » In Amherst, Massachusetts, nurse Jane Toppan is arrested for murdering the Davis family of Boston with an overdose of morphine.
Day of death April 17, 1986
The temperature on April 17, 1986 was between 2.8 °C and 12.6 °C and averaged 7.1 °C. There was 1.7 mm of rain during 2.2 hours. There was 3.2 hours of sunshine (23%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. 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 1 » Communist Party of Nepal (Mashal) cadres attack a number of police stations in Kathmandu, seeking to incite a popular rebellion.
April 14 » The heaviest hailstones ever recorded (1 kilogram (2.2lb)) fall on the Gopalganj district of Bangladesh, killing 92.
April 29 » Chernobyl disaster: American and European spy satellites capture the ruins of the 4th Reactor at the Chernobyl Power Plant.
September 5 » Pan Am Flight 73 from Mumbai, India with 358 people on board is hijacked at Karachi International Airport.
September 7 » Desmond Tutu becomes the first black man to lead the Anglican Diocese of Cape Town.
November 3 » The Compact of Free Association becomes law, granting the Federated States of Micronesia and the Marshall Islands independence from the United States.
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/I170209.php : accessed December 27, 2025), "Niesko Boersma (1901-1986)".
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