The temperature on October 11, 1911 was between 2.2 °C and 14.4 °C and averaged 7.9 °C. There was 3.2 hours of sunshine (29%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
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.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
September 29 » Italy declares war on the Ottoman Empire.
November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I1123.php : accessed January 8, 2026), "Helena Prins (1890-????)".
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