The temperature on May 19, 1911 was between 8.5 °C and 11.9 °C and averaged 10.0 °C. There was 0.8 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
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.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
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The Family tree Berendsen en Flinkers publication was prepared by Geert Berendsen (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Geert Berendsen, "Family tree Berendsen en Flinkers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-berendsen-en-flinkers/I13442.php : accessed June 9, 2024), "Derk Walgemoet (1886-????)".
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