Manifest Destiny – An Expression of Our National Spirit [1848 to 1852]
Manifest Destiny, one of the most influential ideologies in American history, serves as the
justification for the nation’s territorial expansion in the antebellum era.

In the 19th century, manifest destiny was a widely held belief in the United States that its settlers were destined to expand across North America to redeem and remake the west in the image of agrarian America

Mobility –  both physical and socio-economic

Availability –   of federal land grants

Possibility –  of starting a new life