=6. Main Divisions of the Book.=--From the title page, we learn that in the Book of Mormon we have to deal with the histories of two great nations, who flourished in America as the descendants of small colonies brought hither from the eastern continent by Divine direction. Of these we may conveniently speak as the Nephites and the Jaredites. =7. The Nephite Nation= was the later, and in point of the fulness of the records, the more important. The progenitors of this nation were led from Jerusalem 600 B. C., by Lehi, a Jewish prophet of the tribe of Manasseh. His immediate family, at the time of their departure from Jerusalem, comprised his wife Sariah, and their sons Laman, Lemuel, Sam, and Nephi; at a later stage of the history, daughters are mentioned, but whether any of these were born before the family exodus we are not told. Beside his own family, the colony of Lehi included Zoram and Ishmael, the latter an Israelite of the tribe of Ephraim. Ishmael, with his family, joined Lehi in the wilderness; and his descendants were numbered with the nation of whom we are speaking. The company journeyed somewhat east of south, keeping near the borders of the Red Sea; then, changing their course to the eastward, crossed the peninsula of Arabia; and there, on the shores of the Arabian Sea, built and provisioned a vessel in which they committed themselves to Divine care upon the waters. Their voyage carried them eastward across the Indian Ocean, then over the south Pacific Ocean to the western coast of South America, whereon they landed (590 B. C.). The landing place is not described with such detail as to warrant definite conclusions.