500
First, protective tariff- people start to buy American goods, because imported goods are to expensive. People start to buy goods from each other and make good relationship, and that unites the country. Second, national bank- all the people go to take money to one bank, meet with other people, one more time to make good relationship, and that unites the country. And the last, transportation- with better transportation, people begin to travel to other states, make good relationship, and that unites the country.
Summarize the American System and explain how it united the country.