The temperature on May 3, 1911 was between 7.6 °C and 16.8 °C and averaged 11.8 °C. There was 1.7 mm of rain. There was 8.0 hours of sunshine (53%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 9 » The works of Gabriele D'Annunzio are placed in the Index of Forbidden Books by the Vatican.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
When copying data from this family tree, please include a reference to the origin: Martien Mantel, "Genealogy N.P. Mantel", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-mantel/I76388.php : accessed May 31, 2024), "Adrianus Koenis (1911-)".
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