Mu and Lemuria are lost continents that were postulated in the 19th century. Both these lost continents differ in some aspects while they are same in others. In fact some scholars even feel they are the same. They feel that Mu was a misinterpretation of stories from Lemuria. Like various other missing land masses it is believed that Mu and Lemuria sunk beneath the ocean. While continent of Mu is deemed to have sunk overnight, it is said that parts of Lemuria remained even after others sank.