January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
February 1 » La bohème premieres in Turin at the Teatro Regio (Turin), conducted by the young Arturo Toscanini.
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
December 17 » Pittsburgh, Pennsylvania's Schenley Park Casino, which was the first multi-purpose arena with the technology to create an artificial ice surface in North America, is destroyed in a fire.
December 30 » Canadian ice hockey player Ernie McLea scores the first hat-trick in Stanley Cup play, and the Cup-winning goal as the Montreal Victorias defeat the Winnipeg Victorias 6–5.
Day of death December 23, 1966
The temperature on December 23, 1966 was between 3.8 °C and 8.8 °C and averaged 6.9 °C. There was 1.3 mm of rain during 1.9 hours. The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
June 2 » Surveyor program: Surveyor 1 lands in Oceanus Procellarum on the Moon, becoming the first U.S. spacecraft to soft-land on another world.
August 26 » The South African Border War starts with the battle at Omugulugwombashe.
September 30 » Bechuanaland declares its independence, and becomes the Republic of Botswana.
October 10 » The Beach Boys release one of their biggest singles, ranked the 6th greatest song by Rolling Stone, "Good Vibrations".
November 4 » The Arno River floods Florence, Italy, to a maximum depth of 6.7m (22ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Also Venice was submerged on the same day at its record all-time acqua alta of 194cm (76in).
November 15 » Project Gemini: Gemini 12 completes the program's final mission, when it splashes down safely in the Atlantic Ocean.
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/I36454.php : accessed February 21, 2026), "Hendrikje Bos (1896-1966)".
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