According to Andrew Skinner, in these short verses of 4 Nephi we are taken through almost one-third (approximately 300) of all the years covered by the entire Book of Mormon (approximately 1,000). Truly the magnitude of Mormon’s prophetic task and accomplishment is shown clearly here.
Some readers may lament the fact that one of the greatest periods of Nephite civilization--an era of ultimate earthly peace, prosperity and spirituality--was given such relatively sparse historical treatment. Sidney Sperry observed that “it is unfortunate--at least vexing that the great Golden Era of Nephite history … should be so sparingly treated by Mormon, the abridger.” (Book of Mormon Compendium, p. 434)
However it must be remembered, first, that sometimes things were commanded by the Lord not to be discussed in the records. (3 Nephi 26:11,18) A similar injunction may have applied to this portion of the abridgment. Second, Mormon’s purpose was not the writing of history, nor was it historical embellishment or even enlargement. His abridgment was first and foremost intended to teach the most important truths of the kingdom as they could be culled from history. (see Words of Mormon 1:7-9). [Andrew C. Skinner, “The Course of Peace and Apostasy,” in Studies in Scripture: Book of Mormon, Part 2, p. 220]
Note* For a reiteration of the main purposes of the Book of Mormon (covenants and Christ), see the Title Page commentary. [Alan C. Miner, Personal Notes]
4 Nephi 1:4, 48 The thirty and seventh year passed away … three hundred and twenty years had passed away (Illustration): Chart: “Nephite Books Compared by Length and Years Covered.” [John W. & J. Gregory Welch, Charting the Book of Mormon: Visual Aids for Personal Study and Teaching, F.A.R.M.S., Chart #24]