According to Hesiod's (probably) "Eoiae" (Greek: Ηοίαι) or "Catalogue of Women" on the origin of the Greeks, Pandora (named after her grandmother Pandora, sister of Hellen and daughter of Deukalion and Pyrrha) together with Zeus had one son Graecus, while Zeus had two more with Thyia, another of Deukalion's daughter: Magnes and Macedon. Magnes and Makednos together with Hellen's three sons Dorus, Xuthus (with his sons Ion and Achaeus) and Aeolos, comprised the set of progenitors of the ancient tribes that formed the Greek/Hellenic nation. Magnes ruled the area and people under his name. Magnesia is also homeland of the mythical heroes Jason, Peleus and his son Achilles.
The word magnet comes from the Greek "magnítis líthos" (μαγνήτης λίθος), which means "magnesian stone". The names for the elements magnesium and manganese are also derived from this region, which in addition to the magnetic magnetite (an iron ore), produces certain ores of magnesium and manganese that were known to alchemists. The Magnetes contributed to the Greek colonization, with their main colonies being established before the 7th century BC, under the names of Magnesia beside Sipylus in Lydia and Magnesia on the Maeander in Ionia.
Written accounts and remains from the 5th century CE document the appearance of Christianity in Magnesia. The minutes of the 3rd Ecumenical Conference are co-signed by the Bishop of Dimitriada Cleonikos. Five basilicas have been revealed in Nea Anhialos, showing that the area was undergoing a spiritual growth in that era. Magnesias has churches, monasteries and chapels, many of which are architectural masterpieces in the style that is called "Pelioritica".
In the area of Pelion are the monastery of Saint Yerasimos in Makrinitsa, The Holy Archangels in Agios Georgios Nilias, Osios Lavredios in Agios Lavrendis, Saint John the Baptist in Siki and Saint Spiridon in Promiri. The most famous is the Monastery in Flamouri, built in the 16th century by Osios Simeon, the so-called "barefoot and loin-clothed", located above Veneto.
In the Almiros area and on the mountain of Othris two other monasteries were built, one inhabited by monks in Ano Pagania (Virgin Mary) Xenia and the other by nuns in Kato Panagia Xenia. This monastery holds historical monuments of the area from the 12th century, with of frescoes, treasuries and a library. In Kato Panagia Xenia monastery, an icon of the Virgin Mary, venerated by the people of the area, is kept. All the monasteries are of archeological, historical and artistic interest and are accessible (the one in Flamouri only by men).