It is the foundational event of Mormonism–or at least that is what it became. Beginning in 1832, Joseph Smith began to publicly talk about a visionary experience he had in a grove of trees nearby his home in upstate New York. However, what he told audiences differed from year-to-year in what feels to be substantial detail. Is this evidence of rank fraud? Or, as his supporters say, does it indicate the natural human tendency to emphasize/omit details of a story based on one’s audience or perhaps his own changing understanding of the importance of certain theological principles. Brittany Nielson and I speak with LDS Church Historian Dr. Stephen Harper about his book, Joseph Smith’s First Vision: A Guide to the Historical Accounts. Harper currently works on the Joseph Smith Papers Project production team for the LDS Church.