The temperature on July 19, 1911 was between 11.4 °C and 22.0 °C and averaged 16.7 °C. There was 11.4 hours of sunshine (71%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 29 » Mexican Revolution: Mexicali is captured by the Mexican Liberal Party, igniting the Magonista rebellion of 1911.
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of marriage August 15, 1934
The temperature on August 15, 1934 was between 10.5 °C and 20.5 °C and averaged 15.2 °C. There was 6.7 hours of sunshine (45%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
January 1 » A "Law for the Prevention of Genetically Diseased Offspring" comes into effect in Nazi Germany.
February 21 » Augusto Sandino is executed.
September 8 » Off the New Jersey coast, a fire aboard the passenger liner SSMorro Castle kills 137 people.
October 22 » In East Liverpool, Ohio, FBI agents shoot and kill notorious bank robber Pretty Boy Floyd.
November 23 » An Anglo-Ethiopian boundary commission in the Ogaden discovers an Italian garrison at Walwal, well within Ethiopian territory. This leads to the Abyssinia Crisis.
December 1 » In the Soviet Union, Politburo member Sergey Kirov is assassinated. Stalin uses the incident as a pretext to initiate the Great Purge.
Day of death February 25, 1961
The temperature on February 25, 1961 was between 5.9 °C and 13.2 °C and averaged 9.7 °C. There was 1.7 hours of sunshine (16%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Vera Develing, "Family tree Develing", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-develing/I30.php : accessed January 6, 2026), "Peter Carel Develing (1911-1961)".
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