The temperature on January 23, 1911 was between -2.1 °C and 0.4 °C and averaged -0.3 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
August 29 » The Canadian Naval Service becomes the Royal Canadian Navy.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of death February 5, 1911
The temperature on February 5, 1911 was between 3.4 °C and 7.6 °C and averaged 4.7 °C. There was 1.4 hours of sunshine (15%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
January 3 » A magnitude 7.7 earthquake destroys the city of Almaty in Russian Turkestan.
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.
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.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
When copying data from this family tree, please include a reference to the origin: Oswald Codfried, "Family tree Codfried", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-codfried/I500375.php : accessed January 12, 2026), " (1911-1911)".
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