Manifest was due to the rise in invasion and desire for expansion and growth.
Explanation:
Manifest destiny is a cultural belief that was followed in the 19th century when the American settler was destined to expand and grow They imagined a landscape of agrigrain east.
They had the idea that the country could expand from east to west that is Atlantic to pacific. James K embraced this manifest destiny Due to the violent fight at the texas and Mexico borders many men were killed and this led to the invasion of Mexican across the border.
Because the map in his time was wrong, China was thought to be farther east than it was, the Americas were not on the maps the combines Atlantic and Pacific was thought to be much narrower than they are.
