January 25 » Nellie Bly completes her round-the-world journey in 72 days.
April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
October 1 » Yosemite National Park is established by the U.S. Congress.
December 15 » Hunkpapa Lakota leader Sitting Bull is killed on Standing Rock Indian Reservation, leading to the Wounded Knee Massacre.
December 29 » Wounded Knee Massacre on Pine Ridge Indian Reservation, 300 Lakota are killed by the United States 7th Cavalry Regiment.
December 30 » Following the Wounded Knee Massacre, the United States Army and Lakota warriors face off in the Drexel Mission Fight.
Day of death August 20, 1987
The temperature on August 20, 1987 was between 13.6 °C and 23.8 °C and averaged 18.3 °C. There was 7.5 hours of sunshine (52%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south east. Source: KNMI
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.
March 6 » The British ferry MSHerald of Free Enterprise capsizes in about 90 seconds, killing 193.
April 18 » The New York Islanders defeat the Washington Capitals 3–2 in Game 7 of their Patrick Division Semifinal series.
November 1 » British Rail Class 43 (HST) hits the record speed of 238km/h for rail vehicles with on-board fuel to generate electricity for traction motors.
November 8 » Remembrance Day bombing: A Provisional IRA bomb explodes in Enniskillen, Northern Ireland during a ceremony honouring those who had died in wars involving British forces. Twelve people are killed and sixty-three wounded.
November 28 » South African Airways Flight 295 crashes into the Indian Ocean, killing all 159 people on board.
December 20 » In the worst peacetime sea disaster, the passenger ferry Doña Paz sinks after colliding with the oil tanker 'MT Vector in the Tablas Strait of the Philippines, killing an estimated 4,000 people (1,749 official).
When copying data from this family tree, please include a reference to the origin: Charles Olson, "Olson's Tree", database, Genealogy Online (https://www.genealogieonline.nl/olsons-tree/P846.php : accessed January 2, 2026), "Helen Jackson (1890-1987)".
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