The end of the twenty-eight year of the reign of the judges would be approximately 66 BC.
Textual: This is the end of a chapter in the 1830 edition. Mormon has begun the story of the stripling warriors because it occurs in this year. While Mormon is not proceeding year by year, he is still using the year markers as the major chapter dividers for this section of his work. The next chapter will pick up other action, delaying further development of the story of Helaman and his young army.