May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
June 16 » Roald Amundsen leaves Oslo, Norway, to commence the first east–west navigation of the Northwest Passage.
June 16 » The Ford Motor Company is incorporated.
August 3 » Macedonian rebels in Kruševo proclaim the Kruševo Republic, which exists for only ten days before Ottoman Turks lay waste to the town.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
December 14 » The Wright brothers make their first attempt to fly with the Wright Flyer at Kitty Hawk, North Carolina.
Day of marriage April 30, 1927
The temperature on April 30, 1927 was between 1.2 °C and 12.1 °C and averaged 6.1 °C. There was 9.1 hours of sunshine (61%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-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.
March 11 » In New York City, Samuel Roxy Rothafel opens the Roxy Theatre.
April 7 » The first long-distance public television broadcast (from Washington, D.C., to New York City, displaying the image of Commerce Secretary Herbert Hoover).
April 27 » Carabineros de Chile (Chilean national police force and gendarmerie) are created.
June 26 » The Cyclone roller coaster opens on Coney Island.
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: Arnold Romeijnders, "Zijper families", database, Genealogy Online (https://www.genealogieonline.nl/zijper-families/I32929.php : accessed May 28, 2024), "Gerrit Rademaker (1903-± 1984)".
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