Students study the history of the U.S. from the origins of society to 1850. Special attention is given to the development and characteristics of African, European, and Native American peoples. There is significant coverage of the political, economic, and social events related to the exploration, colonial, and revolutionary eras; the writing and ratification of the U.S. Constitution; the development of the early republic; sectionalism; westward expansion; and the development of American culture. Students learn basic geography as well as population and settlement patterns. Students learn about the development of the free-enterprise system in the U.S. Students examine basic American principles, including limited government, federalism, checks and balances, separation of powers, and individual rights as reflected in the U.S. Constitution and other historical documents. Students evaluate major reform movements of the 19th century and examine rights and responsibilities of U.S. citizens.