The Mormon movement began with the publishing of the Book of Mormon in March 1830, which Smith claimed was a translation of golden plates containing the religious history of an ancient American civilization which had been compiled by the ancient prophet-historian Mormon. Smith claimed that an angel had directed him to the golden plates, buried in the Hill Cumorah. On April 6, 1830, Smith founded the Church of Christ. In 1832, Smith added an account of a vision he had sometime in the early 1820s while living in Upstate New York . This vision would come to be regarded by some Mormons as the most important event in human history after the birth, ministry, and resurrection of Jesus Christ.