The temperature on December 24, 1927 was between 1.2 °C and 5.3 °C and averaged 3.4 °C. There was 1.8 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
March 24 » Nanking Incident: Foreign warships bombard Nanjing, China, in defense of the foreign citizens within the city.
September 22 » Jack Dempsey loses the "Long Count" boxing match to Gene Tunney.
September 30 » Babe Ruth becomes the first baseball player to hit 60 home runs in a season.
October 4 » Gutzon Borglum begins sculpting Mount Rushmore.
December 8 » The Brookings Institution, one of the United States' oldest think tanks, is founded through the merger of three organizations that had been created by philanthropist Robert S. Brookings.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I488393.php : accessed February 24, 2026), "Willem Stevens (± 1904-)".
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