Manifest destiny is something that went down in the early 19000ths. It was an expansion on the U.S To basically expand the states of the U.S.American continents was both justified and inevitable. It started in 1840. But it was mostly recognized in the 19000ths. It made states like california join the union. It was e It expressed the belief that it was Anglo-Saxon Americans’ providential mission to expand their civilization in the U.S. This is important because this was one of the starting points on creating the U.S. Also Manifest destiny is important because it resembles the death that happened at this time because of that.western expansion is when the perisent at the time was thomas jefferson. Jefferson and others wanted to expand the