The temperature on October 15, 1911 was between 8.2 °C and 11.2 °C and averaged 9.9 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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.
May 23 » The New York Public Library is dedicated.
June 22 » George V and Mary of Teck are crowned King and Queen of the United Kingdom of Great Britain and Ireland.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
November 11 » Many cities in the Midwestern United States break their record highs and lows on the same day as a strong cold front rolls through.
December 27 » "Jana Gana Mana", the national anthem of India, is first sung in the Calcutta Session of the Indian National Congress.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I93005.php : accessed February 13, 2026), "Sierd Bruinsma (1911-)".
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