The temperature on January 21, 1911 was between -3.1 °C and 0.3 °C and averaged -1.8 °C. There was 0.2 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 23 » The New York Public Library is dedicated.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
August 14 » United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.
November 3 » Chevrolet officially enters the automobile market in competition with the Ford Model T.
When copying data from this family tree, please include a reference to the origin: Erwin Jonkers, "Family tree Jonkers", database, Genealogy Online (https://www.genealogieonline.nl/jonkers-stamboom/I1205.php : accessed June 6, 2024), "Aleida Hendrika KOERS (1891-????)".
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