Afro-Panamanian
In 1904 when the construction of the Panama Canal was taken over by the United States for the failure of the French company, will again resort to the West Indian worker. Although between 1904 and 1914 the vast majority of Afro-West Indians who arrived in Panama did a one-year contract with the idea of returning to their home islands once the offshore project, after construction of the canal many Afro-Antillean stayed in Panama. Afro-West Indians who remained in Panama many got jobs in the Canal Zone and became the largest immigrant group in Panama. On the subject of Afro-Antillean Panama, Leslie B. Rout said that when the canal was opened in 1914, some 20,000 African-West Indians remained in Panama.
History of the Panama Canal
French engineer and financier Philippe-Jean Bunau-Varilla played a key role in changing U.S. attitudes. Bunau-Varilla had a large stake in the failed French canal company, and stood to make money on his investment only if the Panama Canal was completed. Extensive lobbying of U.S. lawmakers coupled with his support of a nascent independence movement among the Panamanian people led to a simultaneous revolution in Panama and the negotiation of the Hay–Bunau-Varilla Treaty which secured both independence for Panama and the right for the U.S. to lead a renewed effort to construct the canal. Colombia's response to the Panamanian independence movement was tempered by U.S. military presence; the move is often cited as a classic example of the era of gunboat diplomacy.