ocr: Upon gaining independence from Spain in 1821, Panama was incorporatedinto Gran Colombia. Panama gainedindependence from Colombia with US support in 1903. - 1903 USA buys concession for the construction of the Panama Canal. - 1914 Canal opens to trattic. - 1939 US protectorate status ended. 1968-1981 Administration of Colonel Torrijos Herrera. 1985 General Noriega indictedin USA on drug- tratickaing charges. - 1989 Noriega annuls presidential elections and remains in power. US invasion. Endara, thought to have won May elections, made president. - 1994 The PRD's Emnesto Balladares wins president ...
