Religious texts are most often not literal history. They are allegory, narrative, parable, metaphor, simile, symbol, poetry, story, visionary, and figurative. They are not relating precise word-for-word conversations of the past, nor are they detailing literal events that took place. Yes, the Bible talks about many people and places that may have really existed, and may even abstractly refer to events that really took place, but it is not a history book.
I suggest that the translation of the Book of Mormon was Joseph Smith's alchemical Magnum Opus, or "Great Work," a transmutation of his own base desires for materialistic gold and treasure into the highest spiritual realizations of human atonement in God consciousness, and a realization or awakening of eternal life in his Self, even theosis, which he continued to preach for the rest of his life.