March 2 » United States Steel Corporation is founded as a result of a merger between Carnegie Steel Company and Federal Steel Company which became the first corporation in the world with a market capital over $1 billion.
June 11 » The boundaries of the Colony of New Zealand are extended by the UK to include the Cook Islands.
September 6 » Leon Czolgosz, an unemployed anarchist, shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York.
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.
October 29 » In Amherst, Massachusetts, nurse Jane Toppan is arrested for murdering the Davis family of Boston with an overdose of morphine.
December 10 » The first Nobel Prize ceremony is held in Stockholm on the fifth anniversary of Alfred Nobel's death.
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
January 6 » National Airlines Flight 2511 is destroyed in mid-air by a bomb, while en route from New York City to Miami.
April 4 » France agrees to grant independence to the Mali Federation, a union of Senegal and French Sudan.
May 13 » Hundreds of University of California, Berkeley students congregate for the first day of protest against a visit by the House Committee on Un-American Activities.
August 13 » The Central African Republic declares independence from France.
September 18 » Fidel Castro arrives in New York City as the head of the Cuban delegation to the United Nations.
November 3 » The land that would become the Great Swamp National Wildlife Refuge was established by an Act of Congress after a year-long legal battle that pitted local residents against Port Authority of New York and New Jersey officials wishing to turn the Great Swamp into a major regional airport for jet aircraft.
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 March 12, 2026), "Johannes "Jan" Develing (1901-1960)".
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