USA HISTORY

Detailed explanation-1: -John Louis O’Sullivan, a popular editor and columnist, articulated the long-standing American belief in the God-given mission of the United States to lead the world in the transition to democracy. He called this America’s “manifest destiny.” This idea motivated wars of American expansion.

Detailed explanation-2: -US President James K. Polk (1845-1849) is the leader most associated with Manifest Destiny. Manifest Destiny inflamed sectional tensions over slavery, which ultimately led to the Civil War.

Detailed explanation-3: -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-4: -The phrase “manifest destiny” is most often associated with the territorial expansion of the United States from 1812 to 1867. This era, from the War of 1812 to the acquisition of Alaska in 1867, has been called the “age of manifest destiny".