June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
September 22 » Queen Victoria surpasses her grandfather King George III as the longest reigning monarch in British history.
November 27 » Also sprach Zarathustra by Richard Strauss is first performed.
December 10 » Alfred Jarry's Ubu Roi premieres in Paris. A riot breaks out at the end of the performance.
Day of marriage May 10, 1921
The temperature on May 10, 1921 was between 6.2 °C and 17.3 °C and averaged 11.9 °C. There was 1.0 mm of rain. There was 6.4 hours of sunshine (42%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
April 2 » The Autonomous Government of Khorasan, a military government encompassing the modern state of Iran, is established.
May 31 » The Tulsa race massacre kills at least 39, but other estimates of black fatalities vary from 55 to about 300.
July 23 » The Communist Party of China (CPC) is established at the founding National Congress.
September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
November 11 » The Tomb of the Unknowns is dedicated by US President Warren G. Harding at Arlington National Cemetery.
Day of death April 18, 1987
The temperature on April 18, 1987 was between 6.4 °C and 22.2 °C and averaged 13.8 °C. There was 9.1 hours of sunshine (65%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south. 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.
January 4 » The Maryland train collision: An Amtrak train en route to Boston from Washington, D.C., collides with Conrail engines in Chase, Maryland, United States, killing 16 people.
March 19 » Televangelist Jim Bakker resigns as head of the PTL Club due to a brewing sex scandal; he hands over control to Jerry Falwell.
August 7 » Cold War: Lynne Cox becomes the first person to swim from the United States to the Soviet Union, crossing the Bering Strait from Little Diomede Island in Alaska to Big Diomede in the Soviet Union.
September 13 » Goiânia accident: A radioactive object is stolen from an abandoned hospital in Goiânia, Brazil, contaminating many people in the following weeks and causing some to die from radiation poisoning.
September 16 » The Montreal Protocol is signed to protect the ozone layer from depletion.
October 11 » The AIDS Memorial Quilt is first displayed during the Second National March on Washington for Lesbian and Gay Rights.
When copying data from this family tree, please include a reference to the origin: Hans Docter, "Family tree Docter", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-docter/I5645.php : accessed February 6, 2026), "Hendrikje de Vries (1896-1987)".
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