Today in Entrepreneurial History: June 15

By Dane Carlson on June 15, 2011 in History

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• 1520 – Pope Leo X threatens to excommunicate Martin Luther in papal bull Exsurge Domine.
• 1667 – The first human blood transfusion is administered by Dr. Jean-Baptiste Denys.
• 1752 – Benjamin Franklin proves that lightning is electricity (traditional date, the exact date is unknown).
• 1785 – Jean-François Pilâtre de Rozier, co-pilot of the first-ever manned flight (1783), and his companion, Pierre Romain, become the first-ever casualties of an air crash when their hot air balloon explodes during their attempt to cross the English Channel.
• 1844 – Charles Goodyear receives a patent for vulcanization, a process to strengthen rubber.
• 1867 – Atlantic Cable Quartz Lode gold mine located in Montana.
• 1916 – U.S. President Woodrow Wilson signs a bill incorporating the Boy Scouts of America, making them the only American youth organization with a federal charter.

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Business Opportunities Weblog editor and publisher Dane Carlson lives in the Sierra Nevada mountains of California, just 15 miles from Yosemite National Park. He accidentally became a professional blogger in 2001. He has added 12,203 posts to the site.

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Another Idea: How to Start a Air Charter Business

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