Hesiod

Hesiod was one of ancient Greece’s foremost poets and is generally assumed to have flourished around 750 BC. Two of his works have been identified as having parallels with Plato’s Atlantis. The first, his Works and Days, describes the deterioration of mankind in a similar manner to the moral decline of the inhabitants of Atlantis related by Plato.

The second,  Theogony, prompted Haraldur Sigurdsson, a volcanologist has identified imagery that could be a reflection of the eruption of Thera seven hundred years earlier. Professors Mott Greene^[575] and J. V. Luce among others support this idea. This poem contains in line 938 what is probably the earliest use of the name ‘Atlantis’ that we have. “And Maia, the daughter of Atlas, bare to Zeus glorious Hermes, the herald of the deathless gods, for she went up into his holy bed.”^(a)

Greene lists fifteen details in Titanomachy and compares them with the characteristics of the mid 2nd millennium BC eruption of Thera and finds a remarkable correspondence (p.61/2).

The Titanomachy or the war between the Titans and the Olympians recorded in the Theogony has been perceived as a parallel of the conflict between Athens and Atlantis. He also refers to the Hesperides, identified by some with Atlantis, as being located in the west

In the same work Hesiod notes that a wall of bronze ran around Tartarus (equivalent to Hell in Greek mythology), which brings to mind the walls covered with orichalcum in Plato’s Atlantis. It is not unreasonable to suggest the possibility of a common inspiration for both.

^(a) https://www.sacred-texts.com/cla/hesiod/theogony.htm