Final answer:
Manifest Destiny was a 19th-century belief that the United States was destined to expand across North America, from the Atlantic to the Pacific, spreading civilization and democracy. It was also used to justify territorial acquisitions and removal of Native Americans.
Step-by-step explanation:
The term Manifest Destiny is often used to describe the 19th-century American belief that the United States was destined to expand across the North American continent, from the Atlantic seaboard to the Pacific Ocean. The idea, rooted in the notion that American settlers were divinely ordained to spread civilization and democracy, was used to justify territorial acquisition and Indian removals. A central component to Manifest Destiny was the belief in American cultural and racial superiority.
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