Panama Canal Opens
The Panama Canal opened to traffic in August 1914, creating a shortcut across the Isthmus of Panama that linked the Atlantic and Pacific oceans. Ships no longer had to make the long and dangerous voyage around the southern tip of South America, and the canal became one of the most consequential engineering projects of the modern era, reshaping trade routes and the balance of power in the Americas.
The idea of a passage across Central America dated back to the Spanish colonial period, but serious effort began in the 1880s, when a French company led by Ferdinand de Lesseps, builder of the Suez Canal, tried to dig a sea-level canal. The project collapsed in 1889 amid engineering difficulties, financial scandal, and staggering losses from disease, especially yellow fever and malaria. Thousands of workers died, though estimates of the toll vary. Meanwhile, the United States grew increasingly interested in a canal for both commercial and naval reasons. In 1903, Panama separated from Colombia with strong American backing, and it soon signed a treaty granting the United States rights to a Canal Zone, a move that remained controversial for decades.
American construction began in 1904 and relied on several key changes. Chief engineer John Stevens reorganized the railway and logistics, and his successor, George Goethals, oversaw the main excavation. Public health measures led by William Gorgas, including mosquito control, dramatically reduced yellow fever and helped make the work feasible. Rather than a sea-level cut, the builders chose a lock system that lifted ships to an artificial lake, Gatun Lake, and then lowered them on the other side. The enormous Culebra Cut through the continental divide required moving vast amounts of earth, and landslides were a constant problem. The labor force was drawn heavily from the Caribbean, particularly Barbados, and many workers faced harsh conditions and racial segregation in pay and housing. Thousands died during the American phase as well.
The first official transit took place in mid-August 1914, but the outbreak of World War I in Europe overshadowed the occasion, and there was no grand international celebration.
The canal cut thousands of miles from voyages between the east and west coasts of the United States and eased trade between Europe and Asia-Pacific ports. It also let the U.S. Navy shift ships between oceans more quickly. Panamanian resentment over American control of the Canal Zone grew over the century, leading to the Torrijos-Carter Treaties of 1977, which set the stage for Panama to assume full control at the end of 1999. A major expansion with larger locks opened in 2016, reflecting the canal's continuing importance to global shipping.