Complex sentence: Various groups of survivors, including Demetrios and Antillia, flee to Greece and other parts of the world, where they are absorbed into other cultures, and the Legend of Lost Atlantis is spread through the many peoples and nations that follow through the centuries.
Split into simpler sentences: Various groups of survivors, including Demetrios and Antillia, flee to Greece and other parts of the world, where they are absorbed into other cultures. With that, the Legend of Lost Atlantis is spread through the mythologies of the many peoples and nations that follow through the centuries.