The temperature on August 4, 1927 was between 11.5 °C and 23.6 °C and averaged 18.4 °C. There was 12.3 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
May 4 » The Academy of Motion Picture Arts and Sciences is incorporated.
July 16 » Augusto César Sandino leads a raid on U.S. Marines and Nicaraguan Guardia Nacional that had been sent to apprehend him in the village of Ocotal, but is repulsed by one of the first dive-bombing attacks in history.
October 6 » Opening of The Jazz Singer, the first prominent "talkie" movie.
December 11 » Guangzhou Uprising: Communist Red Guards launch an uprising in Guangzhou, China, taking over most of the city and announcing the formation of a Guangzhou Soviet.
December 17 » Indian revolutionary Rajendra Lahiri is hanged in Gonda jail, Uttar Pradesh, India, two days before the scheduled date.
When copying data from this family tree, please include a reference to the origin: A. Petit, "Family tree Petit", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-petit/I11046.php : accessed March 5, 2026), "Hendrika Molenaar (1907-)".
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