Atlantis is a mythical island-state. The most detailed description of Atlantis is known from the dialogues of Plato; Also known are references and comments of Herodotus, Diodorus of Sicily, Posidonius, Strabo, Proclus.
The testimony of the ancients about the location of Atlantis is uncertain. According to Plato, the island was located west of the Pillars of Hercules, opposite the Atlas Mountains. During a strong earthquake accompanied by flooding, the island was swallowed up by the sea one day along with its inhabitants, the Atlanteans.
