The 19th century in the United States refers to the period in the United States from 1801 through 1900 in the Gregorian calendar. For information on this period, see:
The 19th century in the United States refers to the period in the United States from 1801 through 1900 in the Gregorian calendar. For information on this period, see:
Manifest destiny was the expansionist belief in the 19th-century United States that American settlers were destined to expand westward across North America, and that this belief was both obvious ("manifest") and certain ("destiny"). The belief is rooted in American exceptionalism and romantic nationalism, implying the inevitable spread of republicanism and the American way. It is one of the earliest expressions of American imperialism.
According to historian William Earl Weeks, there were three basic tenets behind the concept: