McPhee, Ian D. Pemberton, Elizabeth G ... American School of Classical Studies at Athens ... In 1971 in the southwestern area of the Roman Forum of Corinth a round-bottomed drainage channel was discovered filled with the largest deposit of pottery of the 4th century ever found in the city, some ... 2012 ... In 1971 in the southwestern area of the Roman Forum of Corinth a round-bottomed drainage channel was discovered filled with the largest deposit of pottery of the 4th century ever found in the city, some coins, terracotta figurines, and metal and stone objects.