MANIFEST DESTINY

"O'Sullivan's phrase provided a label for sentiments which had become particularly popular during the 1840s, but the ideas themselves were not new. O'Sullivan himself had earlier expressed some of these ideas, notably in an 1839 essay entitled "The Great Nation of Futurity". O'Sullivan was not the originator of the concept of Manifest Destiny, but he was one of its foremost advocates." -Wikipedia

See Wikipedia Article here

See Timothy O'Sullivan's "The Great Nation of Futurity" here.