COVERS: Prehistory - Early 1600s; Colonial America (1607-1780s); American Revolution and the Early Republic (1776-1791); American Expansion (1801-1861); Civil War and Reconstruction (1850s-1870s); Reshaping the Nation (1850-1917); World Wars and Modern America (1900s-1930s); World War II (1930s-1945); Post-World War II Era (1945-1980)