April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 6 » London becomes the world's first city to host licensed taxicabs.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage August 13, 1921
The temperature on August 13, 1921 was between 7.7 °C and 17.7 °C and averaged 13.9 °C. There was 0.5 hours of sunshine (3%). The average windspeed was 2 Bft (weak wind) 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.
February 21 » Rezā Shāh takes control of Tehran during a successful coup.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
June 20 » Workers of Buckingham and Carnatic Mills in the city of Chennai, India, begin a four-month strike.
July 10 » Belfast's Bloody Sunday: Sixteen people are killed and 161 houses destroyed during rioting and gun battles in Belfast, Northern Ireland.
October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.
December 22 » Opening of Visva-Bharati College, also known as Santiniketan College, now Visva Bharati University, India.
Day of death March 20, 1991
The temperature on March 20, 1991 was between 8.7 °C and 14.3 °C and averaged 11.9 °C. There was 1.8 mm of rain during 1.7 hours. There was 1.2 hours of sunshine (10%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
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 1 » A runway collision between USAir Flight 1493 and SkyWest Flight 5569 at Los Angeles International Airport results in the deaths of 34 people, and injuries to 30 others.
May 15 » Édith Cresson becomes France's first female Prime Minister.
July 10 » Boris Yeltsin takes office as the first elected President of Russia.
August 31 » Kyrgyzstan declares its independence from the Soviet Union.
September 5 » The current international treaty defending indigenous peoples, Indigenous and Tribal Peoples Convention, 1989, comes into force.
November 18 » Shiite Muslim kidnappers in Lebanon release Anglican Church envoys Terry Waite and Thomas Sutherland.
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/I103267.php : accessed February 5, 2026), "Maria Pater (1897-1991)".
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