American political history encompasses the development of the United States' government and political institutions from its founding in 1776 to the present. Key events include the drafting of the U.S. Constitution, the establishment of the Bill of Rights, and the evolution of political parties, such as the Federalists and Democratic-Republicans. Throughout its history, the U.S. has faced significant challenges, including the Civil War, the struggle for civil rights, and debates over immigration and healthcare. Major political movements, like Progressivism and Civil Rights, have shaped policies and public opinion, reflecting the changing values of American society.