The temperature on July 15, 1911 was between 11.9 °C and 17.9 °C and averaged 14.9 °C. There was 1.1 hours of sunshine (7%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
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.
April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
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 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
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: S. van Brakel-Groenendijk, "Genealogy Groenendijk- van Noord- Fris- van Kempen.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-groenendijk-fris/I3595.php : accessed May 15, 2024), "Hendrika Christina "Riek" Groenendijk (1911-)".
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