January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
March 24 » Mayor of New York City Robert Anderson Van Wyck breaks ground for a new underground "Rapid Transit Railroad" that would link Manhattan and Brooklyn.
April 2 » The United States Congress passes the Foraker Act, giving Puerto Rico limited self-rule.
September 17 » Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham Jr. at Mabitac.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 18 » The Upper Ferntree Gully to Gembrook, Victoria Narrow-gauge (2ft 6 in or 762mm) Railway (now the Puffing Billy Railway) in Victoria, Australia is opened for traffic.
Day of marriage February 28, 1921
The temperature on February 28, 1921 was between 5.3 °C and 8.9 °C and averaged 6.5 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
June 20 » Workers of Buckingham and Carnatic Mills in the city of Chennai, India, begin a four-month strike.
July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
August 3 » Major League Baseball Commissioner Kenesaw Mountain Landis confirms the ban of the eight Chicago Black Sox, the day after they were acquitted by a Chicago court.
August 28 » The Red Army dissolved the Free Territory, after driving the Black Army out of Ukraine.
September 21 » A storage silo in Oppau, Germany, explodes, killing 500–600 people.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
Day of death August 20, 1989
The temperature on August 20, 1989 was between 11.6 °C and 30.0 °C and averaged 21.4 °C. There was 12.6 hours of sunshine (87%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-southwest. 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.
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 3 » A military coup overthrows Alfredo Stroessner, dictator of Paraguay since 1954.
April 7 » Soviet submarine Komsomolets sinks in the Barents Sea off the coast of Norway killing 42 sailors.
April 27 » The April 27 demonstrations, student-led protests responding to the April 26 Editorial, during the Tiananmen Square protests of 1989.
June 3 » The government of China sends troops to force protesters out of Tiananmen Square after seven weeks of occupation.
June 4 » Ufa train disaster: A natural gas explosion near Ufa, Russia, kills 575 as two trains passing each other throw sparks near a leaky pipeline.
December 25 » Romanian Revolution: Deposed President of Romania Nicolae Ceaușescu and his wife, Elena, are condemned to death and executed after a summary trial.
Day of burial August 25, 1989
The temperature on August 25, 1989 was between 7.6 °C and 18.9 °C and averaged 15.3 °C. There was 2.0 mm of rain during 1.5 hours. There was 1.6 hours of sunshine (11%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. 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.
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 14 » Iranian leader Ruhollah Khomeini issues a fatwa encouraging Muslims to kill Salman Rushdie, author of The Satanic Verses.
February 19 » Flying Tiger Line flight 66 crashes into a hill near Sultan Abdul Aziz Shah Airport in Malaysia, killing four.
March 24 » In Prince William Sound in Alaska, the Exxon Valdez spills 240,000 barrels (38,000m) of crude oil after running aground.
June 4 » The Tiananmen Square protests are suppressed in Beijing by the People's Liberation Army, with between 241 and 1,000 dead (an unofficial estimate).
September 4 » In Leipzig, East Germany, the first of weekly demonstration for the legalisation of opposition groups and democratic reforms takes place.
December 16 » Romanian Revolution: Protests break out in Timișoara, Romania, in response to an attempt by the government to evict dissident Hungarian pastor László Tőkés.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I80781.php : accessed February 2, 2026), "Jannetje van Hemel (1900-1989)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.