The temperature on August 18, 1927 was between 9.4 °C and 17.6 °C and averaged 13.8 °C. There was 1.3 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. 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.
July 4 » First flight of the Lockheed Vega.
July 23 » The first station of the Indian Broadcasting Company goes on the air in Bombay.
September 18 » The Columbia Broadcasting System goes on the air.
December 17 » Indian revolutionary Rajendra Lahiri is hanged in Gonda jail, Uttar Pradesh, India, two days before the scheduled date.
December 27 » Kern and Hammerstein's musical play Show Boat, considered to be the first true American musical play, opens at the Ziegfeld Theatre on Broadway.
When copying data from this family tree, please include a reference to the origin: Marieke Cooper, "Family tree Cooper, Kooper, Oostwal, Robert, Ooteman en Blokland", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-cooper/I1472.php : accessed February 17, 2026), "Ernst Willem Frankvoort (± 1902-)".
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