The temperature on August 15, 1911 was between 14.3 °C and 20.7 °C and averaged 16.5 °C. There was 0.8 mm of rain. There was 3.2 hours of sunshine (22%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
September 7 » French poet Guillaume Apollinaire is arrested and put in jail on suspicion of stealing the Mona Lisa from the Louvre museum.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
November 11 » Many cities in the Midwestern United States break their record highs and lows on the same day as a strong cold front rolls through.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
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. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I46878.php : accessed February 14, 2026), "Grietje Hensens (± 1911-1911)".
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