The Book of Mormon is a religious text of the Latter Day Saint movement, which, according to Latter Day Saint theology, contains writings of ancient prophets who lived on the American continent from 600 BC to AD 421 and during an interlude dated by the text to the unspecified time of the Tower of Babel. It was first published in March 1830 by Joseph Smith as The Book of Mormon: An Account Written by the Hand of Mormon upon Plates Taken from the Plates of Nephi. The Book of Mormon is one of the earliest and most well known unique writings of the Latter Day Saint movement. The denominations of the Latter Day Saint movement typically regard the text primarily as scripture and secondarily as a record of God's dealings with ancient inhabitants of the Americas. The majority of Latter Day Saints believe the book to be a record of real-world history, with Latter Day Saint denominations viewing it variously as an inspired record of scripture to the lynchpin or "keystone" of their religion. Some Latter Day Saint academics and apologetic organizations strive to affirm the book as historically authentic through their scholarship and research, but mainstream archaeological, historical, and scientific communities have discovered little to support the existence of the civilizations described therein, and do not consider it to be an actual record of historical events.