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.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
December 6 » London becomes the world's first city to host licensed taxicabs.
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 June 10, 1978
The temperature on June 10, 1978 was between 7.8 °C and 15.1 °C and averaged 12.2 °C. There was 0.3 mm of rain during 0.2 hours. There was 3.9 hours of sunshine (23%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
January 19 » The last Volkswagen Beetle made in Germany leaves VW's plant in Emden. Beetle production in Latin America continues until 2003.
March 9 » President Soeharto inaugurated Jagorawi Toll Road, the first toll highway in Indonesia, connecting Jakarta, Bogor and Ciawi, West Java.
March 16 » Supertanker Amoco Cadiz splits in two after running aground on the Portsall Rocks, three miles off the coast of Brittany, resulting in the largest oil spill in history at that time.
March 28 » The US Supreme Court hands down 5–3 decision in Stump v. Sparkman, a controversial case involving involuntary sterilization and judicial immunity.
September 19 » The Solomon Islands join the United Nations.
December 11 » The Lufthansa heist is committed by a group led by Lucchese family associate Jimmy Burke. It was the largest cash robbery ever committed on American soil, at that time.
When copying data from this family tree, please include a reference to the origin: Leo van den Bos, "Family tree Van Seters", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-seters/I362.php : accessed February 24, 2026), "Petronella_Geertruide van Seters (1897-1978)".
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