The temperature on June 9, 1927 was between 3.6 °C and 16.4 °C and averaged 11.2 °C. There was 0.3 mm of rain. There was 10.7 hours of sunshine (64%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
February 23 » U.S. President Calvin Coolidge signs a bill by Congress establishing the Federal Radio Commission (later replaced by the Federal Communications Commission) which was to regulate the use of radio frequencies in the United States.
March 11 » In New York City, Samuel Roxy Rothafel opens the Roxy Theatre.
May 5 » To the Lighthouse by Virginia Woolf is first published.
May 20 » Treaty of Jeddah: The United Kingdom recognizes the sovereignty of King Ibn Saud in the Kingdoms of Hejaz and Nejd, which later merge to become the Kingdom of Saudi Arabia.
May 27 » The Ford Motor Company ceases manufacture of the Ford Model T and begins to retool plants to make the Ford Model A.
July 15 » Massacre of July 15, 1927: Eighty-nine protesters are killed by the Austrian police in Vienna.
Day of death June 10, 1927
The temperature on June 10, 1927 was between 2.2 °C and 17.1 °C and averaged 11.0 °C. There was 4.6 hours of sunshine (28%). The average windspeed was 2 Bft (weak wind) and was prevailing from the ??. 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 15 » Massacre of July 15, 1927: Eighty-nine protesters are killed by the Austrian police in Vienna.
August 7 » The Peace Bridge opens between Fort Erie, Ontario and Buffalo, New York.
November 21 » Columbine Mine massacre: Striking coal miners are allegedly attacked with machine guns by a detachment of state police dressed in civilian clothes.
December 19 » Three Indian revolutionaries, Ram Prasad Bismil, Roshan Singh and Ashfaqulla Khan, are executed by the British Raj for participation in the Kakori conspiracy.
December 30 » The Ginza Line, the first subway line in Asia, opens in Tokyo, Japan.
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/I20290.php : accessed February 1, 2026), "Johannes Stephanus Swanepoel (1927-1927)".
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