Original sentence: Smith said that the last prophet to contribute to the book, a man named Moroni, buried it in the Hill Cumorah in present-day Manchester, New York before his death, and then returned to Earth in 1827 as an angel, revealing the location of the plates to Smith, and instructing him to translate the plates into English for use in the restoration of Christ's true church in the latter days
Edited sentence: Smith said that the last prophet to contribute to the book, a man named Moroni, buried it in the Hill Cumorah in present-day Manchester, New York before his death, and then returned to Earth in 1823 as an angel, revealing the location of the plates to Smith, and instructing him to translate the plates into English for use in the restoration of Christ's true church in the latter days