Said to have been dictated by Joseph Smith as a translation of an ancient Egyptian scroll purchased in Kirtland, Ohio, in 1835, the Book of Abraham may be Mormonism's most controversial scripture. Decades of impassioned discussion began when about a dozen fragments of Smith's Egyptian papyri, including a facsimile from the Book of Abraham, were found in the New York Metropolitan Museum in 1966. The discovery solved a mystery about the origin of the...