from what country did panama gain independence in 1903
Separation of Panama from Colombia The separation of Panama from Colombia was formalized on 3 November 1903, with the establishment of the Republic of Panama. From the Independence of Panama from Spain in 1821, Panama had simultaneously declared independence from Spain and joined itself to the confederation of Gran Colombia through the Independence Act of Panama. Panama was always tenuously connected to the rest of the country to the south, owing to its remoteness from the government in Bogotá and lack of a practical overland connection to the rest of Gran Colombia. In 1840-1841, a short-lived independent republic was established under Tomás de Herrera. After rejoining Colombia following a 13-month independence, it remained a province which saw frequent rebellious flare-ups, notably the Panama crisis of 1885, which saw the intervention of the United States Navy.
Panama Canal A decade later, in 1974, negotiations toward a settlement began and resulted in the Torrijos–Carter Treaties. On September 7, 1977, the treaty was signed by President of the United States Jimmy Carter and Omar Torrijos, de facto leader of Panama. This mobilized the process of granting the Panamanians free control of the canal so long as Panama signed a treaty guaranteeing the permanent neutrality of the canal. The treaty led to full Panamanian control effective at noon on December 31, 1999, and the Panama Canal Authority (ACP) assumed command of the waterway. The Panama Canal remains one of the chief revenue sources for Panama.[56][57]