The ancient agora of Thassos discovered by the French archaeological school with excavations in the period 1948-1955. The built of the agora began in the 4th century BC and was completed in the 2nd century BC. Agora was built near the ancient port and was the heart of the ancient city of Thassos. It was the commercial, political and religious center of the island. Three gates of the ancient market ensured access to the port.