The temperature on November 23, 1927 was between -5.6 °C and -0.6 °C and averaged -3.7 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 1 » New Mexican oil legislation goes into effect, leading to the formal outbreak of the Cristero War.
January 27 » Ibn Saud takes the title of King of Nejd.
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 29 » Sunbeam 1000hp breaks the land speed record at Daytona Beach, Florida.
April 27 » Carabineros de Chile (Chilean national police force and gendarmerie) are created.
August 16 » The Dole Air Race begins from Oakland, California, to Honolulu, Hawaii, during which six out of the eight participating planes crash or disappear.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I12041.php : accessed March 6, 2026), "Rudolph Petrus Gerhardus Dreyer (1927-2011)".
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