Greek Mythology permeates Plato’s Atlantis story as it does virtually all Classical Greek writing. The challenge presented by Plato’s narrative is how to accurately separate the historical from the mythological. Carlos Parada has an interesting website(a), for those wishing to pursue a study of it, and also includes a few interesting pages on Atlantis. Another site worth a look is theoi.com(b).
*I can also recommend Mark Cartwright’s Ancient History Encyclopedia(c).
Some commentators have remarked how many of the Greek (and Roman) gods morphed into Christian saints. Furthermore, after the fall of the Roman Empire, the Western Church also adopted many of the trappings of imperial Rome(d).*