Best Answer: pretend that you are walking down the street and you see a real big pit bull laying in the sidewalk, do you walk over to it and wake it up or do you ...
Now, with territory up to the Mississippi River claimed and settled and the Louisiana Purchase explored, Americans headed west in droves. Newspaper editor John O'Sullivan coined the term  manifest destiny  in 1845 to describe the essence of this mindset. A symbol of Manifest Destiny, the figure Columbia moves across the land in advance of settlers, replacing darkness with light and ignorance with civilization. The religious fervor spawned by the Second Great Awakening created another incentive for the drive west.
It was used by Democrats in the 1840s to justify the war with Mexico and it was also used to divide half of Oregon with the United Kingdom. But Manifest Destiny always limped along because of its internal limitations and the issue of slavery, says Merk.It never became a national priority.his destiny was not explicitly territorial, but O'Sullivan predicted that the United States would be one of a Union of many Republics sharing those values. 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.