Can you correct this ?
The painting American Progress, by John Gast, is allegory about pioneer who spread over us idea ; in the America continent. We can see, from left to right, Indians on horseback, a chariot, a covered wagon, an American horse-drawn stagecoach hire vehicule, a train railway line, and a western vessel ship. This gradation of the line haul transportation symbolises the inevitability of technical progress and the chronological amplification of the migratory expansion. The Indian can't adapt us tech to the technology; that why they are doomed to disappear. Settlers take up almost all of the painting. In this way, John Gast makes a procatalepsis(<em>This isn't the right word. I'm not sure what you want to say.</em>) about the future distribution of the US continent. So, this painting hints at the past in the left, and invents a vision of the future. Means of transportion are more and more swift, sophisticated, and with able to handle large volumes; since when, converge and increase exponentially over time. The storm cloud is depicted in the wild west and the pioneers must flee over there enfranchise to european psyche. (<em>I don't knw what you mean here.</em>)
The leading character can be identified as at Columbia, the emblem of the USA. Indeed, the woman stretches in her hand a long telegraph cable across the land for to strengthen the perennial union connection between colonists, as well as a red book, which could be the United States' Declaration of Independence of 1776(<em>It says "Schoolbook" so I suspect it's meant to symbolize education</em>), written by Thomas Jefferson, the same man who organized the Lewis and Clark Expedition, a factor underlying American expansion. The white angel is also a metaphor at for a divine mission. In fact, American migration is for some people a god injunctionGod's will.
I don't agree with this vision of US expansion because I think about men's actions are not determined by celestial desires and men can modify the course of things events. So « manifest destiny » is a quixotic philosophical concept. For example, mammals could survive a cretaceous-paleogene extinction event, however they(<em>who, the animals?</em>) didn't believed have a form of godliness in God, and Romans were the undisputed rulers of the world whereas even though they were polytheistic, contrary to American beliefs.