The term 'Lost Continent' is often used to refer to the mythical island of ATLANTIS, which was first mentioned by Plato in his dialogues Timaeus and Critias. According to Plato, ATLANTIS was a powerful and advanced civilization that existed in the Atlantic Ocean before it suddenly disappeared. The exact location of ATLANTIS remains unknown, but many people believe that it may have been located somewhere in the Mediterranean Sea or the Atlantic Ocean.