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.
Panama Canal Railway
The principal incentive for the United States to build the rail line was the vast increase in passenger and freight traffic to California following the 1849 California Gold Rush. The United States Congress had provided subsidies to companies to operate mail and passenger steamships on the coasts, and supported some funds for construction of the railroad, which began in 1850; the first revenue train ran over the full length on January 28, 1855. Referred to as an when it opened, it was later also described by some as representing a "transcontinental" railroad, despite transversing only the narrow isthmus connecting the North and South American continents. For a time the Panama Railroad also owned and operated ocean-going ships that provided mail and passenger service to a few major East Coast and West Coast cities, respectively. The infrastructure of this railroad was of vital importance to the construction of the Panama Canal over a parallel route half a century later.