What Does Manifest Destiny Mean
Manifest destiny is a 19th-century belief that the United States was destined to expand across North America. The term combines the idea of obvious fate with national mission. It framed westward expansion as both inevitable and virtuous.
Origins and Historical Context
The phrase became popular after journalist John L. O'Sullivan used it in 1845 to advocate for the annexation of Texas. Supporters argued that American settlers would spread democracy and capitalism across the continent. The idea shaped public opinion, presidential policies, and debates over slavery in new territories.
Impact on Expansion and Policy
Manifest destiny influenced key events such as the Mexican-American War and the Oregon Territory settlement. It justified the displacement of Native American communities and territorial acquisitions. The belief reinforced a national narrative of growth, opportunity, and continental control.
For a broader overview of this period, see the Library of Congress timeline of westward expansion here.
