Prominent changes took place in the United States during the first century of its existence, some of which are westward expansion, industrial growth, and African-American rights. One of the prominent changes was Westward Expansion. In 1776, there were only 13 colonies, and they were all situated on the East Coast. But as news of the West traveled East promising land, farming, no pollution, and for some a fortune in gold, people flocked west traveling by caravans and individual families. This changed many things in America, since it required the United States government to have rule over a larger area, because of the newly formed states, and it also required mail service and railroads to cross the continent. America was fast becoming a
