“The Land South Was Called Lehi and the Land North Was Called Mulek”

"To the ancient Nephites the whole of North America was known as the Land of Mulek, and South America as the Land of Lehi. The reason why these names were so given was because the Lord brought Mulek to the Land North, and Lehi into the Land South when He led them from Judea to this greater Land of Promise. From the days of the first Mosiah to the Christian era, South America was divided into two grand divisions. These were the Land of Zarahemla and the Land of Nephi. During this period, except in times of war, the Lamanites occupied the Land of Nephi, and the Nephites inhabited the Land of Zarahemla." (Reynolds and Sjodahl, Commentary on the Book of Mormon, vol. 5, p. 249)