January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
May 8 » In Martinique, Mount Pelée erupts, destroying the town of Saint-Pierre and killing over 30,000 people. Only a handful of residents survive the blast.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
October 24 » Guatemala's Santa María Volcano begins to erupt, becoming the third-largest eruption of the 20th century.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of death January 22, 1966
The temperature on January 22, 1966 was between 0.6 °C and 4.9 °C and averaged 2.3 °C. There was 0.3 mm of rain during 0.2 hours. There was 0.2 hours of sunshine (2%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
May 16 » The Communist Party of China issues the "May 16 Notice", marking the beginning of the Cultural Revolution.
July 2 » France conducts its first nuclear weapon test in the Pacific, on Moruroa Atoll.
July 15 » Vietnam War: The United States and South Vietnam begin Operation Hastings to push the North Vietnamese out of the Vietnamese Demilitarized Zone.
July 18 » A racially charged incident in a bar sparks the six-day Hough riots in Cleveland, Ohio; 1,700 Ohio National Guard troops intervene to restore order.
August 16 » Vietnam War: The House Un-American Activities Committee begins investigations of Americans who have aided the Viet Cong. The committee intends to introduce legislation making these activities illegal. Anti-war demonstrators disrupt the meeting and 50 people are arrested.
December 27 » The Cave of Swallows, the largest known cave shaft in the world, is discovered in Aquismón, San Luis Potosí, Mexico.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I62518.php : accessed February 7, 2026), "Leonard Pieter van der Sluis (1902-1966)".
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