The temperature on August 25, 1911 was between 12.1 °C and 20.6 °C and averaged 16.3 °C. There was 2.3 mm of rain. There was 0.4 hours of sunshine (3%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
When copying data from this family tree, please include a reference to the origin: Marianne Langeslag, "Family tree Langeslag", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-langeslag/I7735.php : accessed February 18, 2026), "Marian Gertrudis Louisa Camp".
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