History of Panama By FCRanger4 Period: Jan 1, 1500 to Apr 15, 2013 Panama Aug 15, 1519 Panama was Founded Jan 16, 1671 Pirate Henry Morgan defeated spanish defenders Nov 18, 1821 Panama became independant from Spain Dec 12, 1846 Panama signed the treaty with the U.S May 7, 1873 U.S Marines attacked Panama Nov 6, 1906 Theodore Rooseveelt visits Panama Oct 10, 1914 Panama Canal Completed Oct 11, 1984 Nicolas Ardito Barletta was elected president in Panama Sep 3, 2007 Widening of the Panama Canal began Apr 27, 2010 Manuel Noriega went on trial in Paris