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.
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
December 30 » The British Colony of Natal annexes Zululand.
Day of death August 11, 1961
The temperature on August 11, 1961 was between 10.8 °C and 20.6 °C and averaged 16.4 °C. There was 2.0 mm of rain during 0.5 hours. There was 6.8 hours of sunshine (45%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 24 » Goldsboro B-52 crash: A bomber carrying two H-bombs breaks up in mid-air over North Carolina. The uranium core of one weapon remains lost.
February 4 » The Angolan War of Independence and the greater Portuguese Colonial War begin.
April 23 » Algiers putsch by French generals.
July 12 » Indian city Pune floods due to failure of the Khadakwasla and Panshet dams, killing at least two thousand people.
September 18 » CONCACAF is established as the governing body for association football in North America, Central America and the Caribbean.
December 15 » Adolf Eichmann is sentenced to death after being found guilty by an Israeli court of 15 criminal charges, including charges of crimes against humanity, crimes against the Jewish people, and membership of an outlawed organization.
When copying data from this family tree, please include a reference to the origin: Jan De Backer, "Family tree De Backer - Evers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-backer-evers/I3051.php : accessed February 18, 2026), "Frans Josef Mathijs Krawinckel (1897-1961)".
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