USA HISTORY

Detailed explanation-1: -Manifest Destiny was the idea that white Americans were divinely ordained to settle the entire continent of North America.

Detailed explanation-2: -Polk, an ardent proponent of Manifest Destiny, had won election with the slogan “54˚ 40’ or fight!” (a reference to the potential northern boundary of Oregon as latitude 54˚ 40’) and called U.S. claims to Oregon “clear and unquestionable” in his inaugural address.

Detailed explanation-3: -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".

Detailed explanation-4: -Propounded during the second half of the 19th century, the concept of Manifest Destiny held that it was the divinely ordained right of the United States to expand its borders to the Pacific Ocean and beyond.