The Bible
3 Nephi 2
Wickedness and abominations increase among the people—The Nephites and Lamanites unite to defend themselves against the Gadianton robbers—Converted Lamanites become white and are called Nephites. About A.D. 5–16.
6And six hundred and nine years had passed away since Lehi left Jerusalem.
15And their curse was taken from them, and their skin became white like unto the Nephites;