TO THE ancient Nephites the whole of North America was known as the land of Mulek, and South America as the land of Lehi; or, to use the exact language of the Book of Mormon, the land south was called Lehi; and the land north was called Mulek.

The reason why these names were so given was because the Lord brought Mulek into the land north, and Lehi into the land south, when he led them from Judea to this greater land of promise.

From the days of the first Mosiah to the era of Christ's advent, South America was divided into two grand divisions. These were the land of Zarahemla and the land of Nephi. During this period, except in times of war, the Lamanites occupied the land of Nephi, and the Nephites inhabited the land of Zarahemla.

That these two lands occupied the whole of the southern continent is shown by the statement of the sacred writer: Thus the land of Nephi, and the land of Zarahemla, were nearly surrounded by water; there being a small neck of land between the land northward and the land southward. The width of this narrow neck of land which connected the two continents is in one place said to have been the distance of a day and a half's journey for a Nephite. In another place it is called a day's journey. Perhaps the places spoken of are not identical, but one may have been slightly to the north of the other along the line of the isthmus.

Both the lands of Nephi and Zarahemla were sub-divided, for governmental purposes, into smaller lands, state or districts. Among the Nephites, these lands, in the days of the republic, were ruled by a local chief judge, subject to the chief judge of the whole nation; and among the Lamanites by kings, who were tributary to the head king, whose seat of government was at the city of Lehi-Nephi or Nephi.

The land of Nephi covered a much larger area of country than did the land of Zarahemla. The two countries were separated by the wilderness which extended entirely across the continent from the shores of the Atlantic Ocean to the Pacific. The northern edge of this wilderness ran in a line almost due east and west, and passed near the head of the river Sidon. The Sidon is generally understood to be the river in these days called the Magdalena.

All north of this belt of wilderness was considered the land of Zarahemla; all south of it was included in the land of Nephi. We are nowhere told its exact breadth, and can only judge thereof from casual references in the narrative of the Book of Mormon.

The river Sidon flowed through the centre of the Nephite civilization of the days of the republic. After the convulsions that attended the crucifixion of the Holy Messiah, the physical and political geography of the continent was greatly changed, and the new conditions are very vaguely defined by the inspired historians.

On the western bank of the river Sidon was built the city of Zarahemla. From the time of its first occupancy by the Nephites, to the date of its destruction by fire at the crucifixion, it was the capital or chief city of the nation, the centre of its commercial activities, and the seat of government. It was the largest and oldest city within their borders, having been founded by the people of Zarahemla before the exodus of the Nephites, under the first Mosiah, from the land of Nephi.