According to Smith's account and the book's narrative, the Book of Mormon was originally written in otherwise unknown characters referred to as "reformed Egyptian" engraved on golden plates. 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 appeared in a vision to Smith in 1827 as an angel, revealing the location of the plates, and instructing him to translate the plates into English for use in the restoration of Christ's true church in the latter days. Critics say that it was authored by Smith, drawing on material and ideas from his contemporary 19th-century environment rather than translating an ancient record.