January 22 » Edward VII is proclaimed King after the death of his mother, Queen Victoria.
February 15 » The association football club Alianza Lima is founded in Lima, Peru, under the name Sport Alianza.
June 11 » The boundaries of the Colony of New Zealand are extended by the UK to include the Cook Islands.
July 24 » O. Henry is released from prison in Columbus, Ohio, after serving three years for embezzlement from a bank.
September 14 » U.S. President William McKinley dies after being mortally wounded on September 6 by anarchist Leon Czolgosz and is succeeded by Vice President Theodore Roosevelt.
November 1 » Sigma Phi Epsilon, the largest national male collegiate fraternity, is established at Richmond College, in Richmond, Virginia.
Day of death May 10, 1960
The temperature on May 10, 1960 was between 10.9 °C and 22.0 °C and averaged 16.4 °C. There was 10.5 hours of sunshine (68%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
February 16 » The U.S. Navy submarine USSTriton begins Operation Sandblast, setting sail from New London, Connecticut, to begin the first submerged circumnavigation of the globe.
April 13 » The United States launches Transit 1-B, the world's first satellite navigation system.
May 15 » The Soviet Union launches Sputnik 4.
July 8 » Francis Gary Powers is charged with espionage resulting from his flight over the Soviet Union.
September 5 » Poet Léopold Sédar Senghor is the first elected President of Senegal.
September 8 » In Huntsville, Alabama, US President Dwight D. Eisenhower formally dedicates the Marshall Space Flight Center (NASA had already activated the facility on July 1).
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/I32.php : accessed January 8, 2026), "Johannes "Jan" Develing (1901-1960)".
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