The temperature on September 7, 1911 was between 8.7 °C and 26.9 °C and averaged 16.9 °C. There was 10.4 hours of sunshine (78%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
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.
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.
August 29 » Ishi, considered the last Native American to make contact with European Americans, emerges from the wilderness of northeastern California.
September 29 » Italy declares war on the Ottoman Empire.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I405559.php : accessed February 21, 2026), "Johannes Maria Gerardus "Johannes" de Beer (1911-> 1980)".
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