Atlantis

Atlantis was a mythical island based off of Greek mythology. According to Greek myth, the island had submerged into the Atlantic Ocean.

Pony Meets World
While it may be considered a myth on Earth, Atlantis became a reality when it had risen due to the actions of Discord. It was also said that U.S President Donald Trump was deporting Atlanteans citizens from the United States according to a news report on BNN.