Corinth, << KAWR ihnth, >> Canal provides a waterway between the Gulf of Corinth and the Saronic Gulf in east-central Greece. The canal is 4 miles (6 kilometers) long. It cuts through the narrow strip of land that connects the peninsula of Peloponnesus with the rest of the Greek mainland. A French company began building the canal in 1881, and Greece finished it in 1893. An attempt to build such a canal had been made by the Roman Emperor Nero in A.D. 67.