The temperature on September 11, 1911 was between 7.5 °C and 24.9 °C and averaged 15.8 °C. There was 10.2 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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.
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.
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 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
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.
When copying data from this family tree, please include a reference to the origin: Johannes Arnoldus Franciscus Henricus Eijsermans, "Stamboom Eijsermans", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I330631.php : accessed June 21, 2024), "Peter Johannes Sanders (1911-)".
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