The temperature on January 1, 1911 was between 0.4 °C and 5.9 °C and averaged 3.5 °C. There was 5.9 mm of rain. There was 1.0 hours of sunshine (13%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
May 23 » The New York Public Library is dedicated.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
September 7 » French poet Guillaume Apollinaire is arrested and put in jail on suspicion of stealing the Mona Lisa from the Louvre museum.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
When copying data from this family tree, please include a reference to the origin: Pauline Berens BC, "Local Heritage Book Barger-Compascuum", database, Genealogy Online (https://www.genealogieonline.nl/ofb-barger-compascuum/I73195.php : accessed February 20, 2026), "Hendrik de Roo (1911-)".
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