January 6 » Second Boer War: Having already besieged the fortress at Ladysmith, Boer forces attack it, but are driven back by British defenders.
May 29 » N'Djamena is founded as Fort-Lamy by the French commander Émile Gentil.
August 3 » The Firestone Tire and Rubber Company is founded.
October 19 » Max Planck discovers Planck's law of black-body radiation.
November 7 » The People's Party is founded in Cuba.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
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.
January 9 » Greco-Turkish War: The First Battle of İnönü, the first battle of the war, begins near Eskişehir in Anatolia.
February 25 » Georgian capital Tbilisi falls to the invading Russian forces after heavy fighting and the Russians declare the Georgian Soviet Socialist Republic.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
October 19 » The Portuguese Prime Minister and several officials are murdered in the Bloody Night coup.
November 4 » The Saalschutz Abteilung (hall defense detachment) of the Nazi Party is renamed the Sturmabteilung (storm detachment) after a large riot in Munich.
December 22 » Opening of Visva-Bharati College, also known as Santiniketan College, now Visva Bharati University, India.
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.
January 24 » Notorious serial killer Ted Bundy, with over 30 known victims, is executed by the electric chair at the Florida State Prison.
April 9 » Tbilisi massacre: an anti-Soviet peaceful demonstration and hunger strike in Tbilisi, demanding restoration of Georgian independence, is dispersed by the Soviet Army, resulting in 20 deaths and hundreds of injuries.
August 2 » Pakistan is re-admitted to the Commonwealth of Nations after having restored democracy for the first time since 1972.
November 7 » East German Prime Minister Willi Stoph, along with his entire cabinet, is forced to resign after huge anti-government protests.
November 28 » Cold War: Velvet Revolution: In the face of protests, the Communist Party of Czechoslovakia announces it will give up its monopoly on political power.
December 22 » Berlin's Brandenburg Gate re-opens after nearly 30 years, effectively ending the division of East and West Germany.
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.
January 24 » Notorious serial killer Ted Bundy, with over 30 known victims, is executed by the electric chair at the Florida State Prison.
February 19 » Flying Tiger Line flight 66 crashes into a hill near Sultan Abdul Aziz Shah Airport in Malaysia, killing four.
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 11 » Hungary announces that the East German refugees who had been housed in temporary camps were free to leave for West Germany.
November 9 » Cold War: Fall of the Berlin Wall: East Germany opens checkpoints in the Berlin Wall, allowing its citizens to travel to West Berlin.
December 20 » The United States invasion of Panama deposes Manuel Noriega.
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)".
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