The temperature on January 17, 1911 was between -3.7 °C and 2.4 °C and averaged 0.3 °C. There was 0.1 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
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: W. Abas, "Family tree Abas", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-abas/I528.php : accessed February 2, 2026), "Samuel Aron Abas Cijfer (1911-)".
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