Population expansion refers to the significant increase in the number of people residing in a specific region or territory. It often occurs due to various factors such as migration, natural growth, or government policies.
Related terms
Frontier Migration: The movement of individuals or groups from settled areas towards new frontiers or undeveloped territories.
Manifest Destiny: The belief prevalent during this time period that it was America's destiny to expand its boundaries from coast to coast.
Homestead Act: A law passed by Congress that provided land grants and encouraged settlement in the western territories.