The Nekromanteion was an ancient Greek temple of necromancy devoted to Hades and Persephone. According to tradition, it was located on the banks of the Acheron river in Epirus, near the ancient city of Ephyra. This site was believed by devotees to be the door to Hades, the realm of the dead. The site is at the meeting point of the Acheron, Pyriphlegethon and Cocytus rivers, believed to flow through and water the kingdom of Hades. The meaning of the names of the rivers has been interpreted to be "joyless", "burning coals" and "lament", respectively. A site in Mesopotamos, Epirus was proposed as the site of the Necromanteion in 1958, but this identification is now questioned.
Ritual use of the Necromanteion involved elaborate ceremonies wherein celebrants seeking to speak to the dead would start by gathering in the ziggurat-like temple and consuming a meal of broad beans, pork, barley bread, oysters, and a narcotic compound. Following a cleansing ceremony and the sacrifice of sheep, the faithful would descend through a chthonic series of meandering corridors leaving offerings as they passed through a number of iron gates. The nekromanteia would pose a series of questions and chant prayers and the celebrants would then witness the priest arise from the floor and begin to fly through the temple through the use of theatrical cranes.
An archaeological site discovered in 1958 and excavated during 1958-64 and 1976-77 was identified as the Necromanteion by archaeologist Sotirios Dakaris based on its geographical location and its similarities to descriptions found in Herodotus and Homer. However, its topographical situation on a hill commanding the immediate neighbourhood does not fit this interpretation and the ruins dated to no earlier than the later 4th century BC. It is now also believed that the site was a fortified farmhouse of a sort common in the Hellenistic period. Besides quantities of household ceramics, the site produced agricultural tools and weaponry, including Roman pila from the final destruction of the site by the Romans in 167 BC. Most surprising of all were 21 washers from at least seven different catapults, which Dakaris had mistakenly identified as components from a crane.
Timeline
8th century BC - Necromanteion described by Homer.
5th century BC - Necromanteion described by Herodotus.