What difficulties have arisen in the process of the formation of American statehood?

The American continent was one of the later discovered in the world. In the 17th century, active colonization began there. The formation of statehood has undergone some difficulties. The reason for the difficulties was the contradiction between the people living on the territory of the mainland and the colonialists from England, France and other European states. In the 18th century, a civil war broke out between southerners and northerners. As a result, a constitution was adopted, which secured the rights of citizens, abolished plantation preferences.