The temperature on January 21, 1927 was between -1.2 °C and 2.3 °C and averaged 0.6 °C. There was 0.2 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
January 27 » Ibn Saud takes the title of King of Nejd.
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 1 » The Union Labor Life Insurance Company is founded by the American Federation of Labor.
June 26 » The Cyclone roller coaster opens on Coney Island.
July 4 » First flight of the Lockheed Vega.
November 13 » The Holland Tunnel opens to traffic as the first Hudson River vehicle tunnel linking New Jersey to New York City.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I38845.php : accessed February 12, 2026), "Eduard Hendrik IJdo (1857-1927)".
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