Oleros was an ancient Cretan city inhabited from the Early Iron Age until the Roman period. It was known for its olive oil production and political involvement in Crete.

Hierapytna, located on the southern coast of Crete, was founded in the Geometric period (c. 9th century BC). The city was a major hub for trade and commerce in ancient times and played a significant role in the island's political and military affairs. Hierapytna flourished during the Hellenistic and Roman periods. It became part of the Byzantine Empire after the division of the Roman Empire. Following the Arab conquest of Crete in the 9th century, Hierapytna was abandoned. Modern archaeological investigations have revealed a wealth of information about the city, including its city walls, agora, temple, theater, and private houses.