USA HISTORY

Detailed explanation-1: -The 19th-century belief that the United States would eventually encompass all of North America is known as “continentalism", a form of tellurocracy. An early proponent of this idea, Adams became a leading figure in U.S. expansion between the Louisiana Purchase in 1803 and the Polk administration in the 1840s.

Detailed explanation-2: -In the mid-nineteenth century, newspaper editor John O’Sullivan coined the term ‘manifest destiny’ to describe the belief that God intended for the United States to occupy North America from Atlantic to Pacific.

Detailed explanation-3: -With its triumph in the Mexican-American War, the United States seemingly realized its Manifest Destiny by gaining an immense domain (more than 525, 000 square miles [1, 360, 000 square km] of land), including present-day Arizona, California, western Colorado, Nevada, New Mexico, Texas, and Utah.

Detailed explanation-4: -Manifest Destiny, a phrase coined in 1845, is the idea that the United States is destined-by God, its advocates believed-to expand its dominion and spread democracy and capitalism across the entire North American continent.

Detailed explanation-5: -The Manifest Destiny was the idea that Americans claimed that their nation was destined to spread across the entire continent, from sea to sea. It affected the United States because they were able to acquire a lot of land and double the size of the United States.