World Population Day
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World Population Day
11 July Knowledge History - Science, Engineering and Management
1811 Italian scientist Amedeo Avogadro publishes his memoir about molecular content of gases.
1892 According to US Patent Office, J W Swan, rather than Thomas Edison, invented the electric light carbon for the incandescent lamp
Birthday - John Quincy Adams (1767-1848) the 6th U.S. President, and son of the 2nd President, John Adams. After serving just one term as President, he served 17 years as a member of Congress. He was the the first president whose father had also been president.
http://www.historyorb.com/day/july/11
http://www.historyplace.com/specials/calendar/july.htm
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