The temperature on May 30, 1911 was between 14.2 °C and 22.7 °C and averaged 18.2 °C. There was 0.6 mm of rain. There was 4.4 hours of sunshine (27%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
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 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
When copying data from this family tree, please include a reference to the origin: Pieter Roskam, "Family tree Van den Bergh, fabrikanten uit Geffen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-den-bergh-geffen/I209.php : accessed June 8, 2024), "Dina Anna Hes".
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