Iolkos was an ancient city of Thessaly, in today’s Magnesia, at the foot of Pelion. It was located near the beach of Pagasitikos Gulf. It is mentioned by Homer in the Iliad (B 712) and by a number of other ancient writers (Hesiod, Pindar, Simonidis, Euripides, etc.). Mythical founder of Iolkos is Kreteas, son of Aeolus, who succeeded Pelias, who ordered his nephew Jason to bring the “golden-haired fleece” from Kolchida, which became the cause of the famous Argonauts Campaign. The son of Akastos, who was killed by the king of Fthia Peleas, was succeeded by the son of Plastas, when the latter took over Jolos with the help of Jason, which interrupted the city’s earliest prosperity, whose first inhabitants were Minees according to Strabo. In the historical times, Iolkos continued to be inhabited until the 2nd century BC, when inscriptions are dated with the word “Iolkioi”. The foundation of Demetrias at a short distance meant the deprivation of Iolkos. From the mythical period, according to the tradition, athletic games in Iolkos were known as “feathers on Pelion” (see Pelion), but they are not known until when they continued. The inhabitants of Iolkos worshiped the goddess Artemis, with the special surname Iolkia Artemis. Temple of Iolka Artemis was probably on the hill of Volos Castle. This hill is situated near the sea, east of the Anuras torrent, today’s Xerra, surrounded by a wall of the Byzantine era. It is most likely that the ancient Iolkos was built on this hill. From time to time, remains of various eras have been discovered there, with the old ones dating back to the Neolithic Age. Also, traces of Mycenaean mansion and vaulted tombs, as well as tombs of the classical era, have come to light. In terms of objects, too many votive, tombstones, resolutions, liberation and honorary inscriptions have been discovered. Remains of the Temple of Artemis of Iolka are, according to Arvanitopoulos, the architectural members discovered on residential walls near the Castle. Also, the material of this temple had perhaps been used in the construction of a Byzantine temple, at whose place is today built a younger temple of Saints Theodoros. The earthquakes of 1956 brought to light on the northwest side of the hill the remains of a palace building, which seems to have been destroyed by fire around 1200 BC. (cf. the mythological capture and the destruction of Iolkos by Peleus). Generally these earthquakes gave the opportunity to study the hill of the Castle stratigraphically. Although Dimini, with the well-known Mycenaean acropolis believed to be far off the coast, to consider the ancient Iolkos, without this being excluded, has provided more evidence to support archaeologically that it is the ancient Iolkos. Excavations carried out since the 1980s have revealed many buildings and other evidence for the view that Dimini and its wider region have demonstrated and support the view of the site as the seat of the Kingdom of the Myrmi. The coast at that time 3500 years ago was much closer to the settlement than it is today. The area was occupied by the deposits of the main streams of the area during the 3 millennia that have passed to this day. Important findings of the area are the following: 1. The tombstone “Lamisipito” Diminou. The monument was initially investigated in 1886 at the initiative of the then prefect of Magnesia I. Kondakis and the high school E. Koussi, and with the collaboration of archaeologists P. Kavvadia, P. Wolter and H. Lolling. Various fixation and restoration work has been done from time to time. 2. The tombstone “Toumba” Diminou. The vaulted tomb “Toumba” was excavated in 1892 by B. Stai. The works for the monument (tree planting, access passageways, information signs) are included in the work of designing the whole archaeological site of Dimini. 3. Mycenaean Palace of Dimini. The research of the palace began in 1997. So far works have been carried out to rehabilitate the walls of the two mansions as well as the additional structures (warehouses and workshops) and the fixing and maintenance of the mortars on the walls and floors. Magnetic and electrical investigations have been conducted around the palace, exploratory sections for the future shelter of the monument, as well as the extension of the existing protection shelter to the palace of the palace. Along the plain from Dimini to the harbor of today’s Volos, many remains of the main road have been revealed and many parts of the houses of Achilles and the Trojan War, on the other hand, around the 13th-12th century BC.