The temperature on May 6, 1927 was between 11.5 °C and 24.1 °C and averaged 17.0 °C. There was 9.3 hours of sunshine (61%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 10 » Fritz Lang's futuristic film Metropolis is released in Germany.
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.
July 4 » First flight of the Lockheed Vega.
July 23 » The first station of the Indian Broadcasting Company goes on the air in Bombay.
October 25 » The Italian luxury liner SS Principessa Mafalda sinks off the coast of Brazil, killing 314.
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.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I20463.php : accessed May 8, 2025), "Jan Haak (1903-)".
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