USA HISTORY

Detailed explanation-1: -Six years later, in 1845, O’Sullivan wrote another essay titled Annexation in the Democratic Review, in which he first used the phrase manifest destiny.

Detailed explanation-2: -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-3: -Answer. The term “manifest destiny” was first used by journalist John O’Sullivan in the New York Democratic Review in 1845. O’Sullivan wrote in favor of the U.S. annexing Texas, a region that the U.S. recognized as independent of any other nation. (Mexico maintained that the region was Mexican territory.)

Detailed explanation-4: -John O’Sullivan and Manifest Destiny In his column, O’Sullivan wrote about Manifest Destiny and his support of the annexation of Texas and the Oregon territory. This helped the movement gain steam that year. President Polk and many Americans believed John O’Sullivan’s idea of Manifest Destiny.