Chronology: This verse contains two important pieces of historical information: first, that Mosiah begins his reign at the age of thirty, and second, that his reign begins 476 years after the departure from Jerusalem. In the dating system being used in this commentary, Mosiah’s anointing would have occurred about 124 B.C. (See commentary accompanying 1 Nephi 10:4 for information on how this commentary calculates years.)