The temperature on July 31, 1911 was between 18.0 °C and 28.3 °C and averaged 22.2 °C. There was 0.7 mm of rain. There was 3.4 hours of sunshine (22%). The average windspeed was 3 Bft (moderate breeze) 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.
April 27 » Following the resignation and death of William P. Frye, a compromise is reached to rotate the office of President pro tempore of the United States Senate.
September 29 » Italy declares war on the Ottoman Empire.
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
When copying data from this family tree, please include a reference to the origin: H.M. Koehorst - Oldenzaal NL, "Family tree Koehorst - Wolbert", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koehorst-wolbert/I267.php : accessed May 16, 2024), "Willemina Grada Koopman (1911-)".
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