Atlantis is a legendary "lost island" people are still trying to figure out what happened to Atlantis. Atlantis was an island that had advance technology. They had a lot of connections with a lot of people like Europe, Mayans, Incas, Aztecs. They had the similar language like the Mayans, Incas, and Aztecs.
This is based off of my theory of the lost city of Atlantis hope this helped :)