[1] Early American civilizations and explorations to 1600 -- [2] Colonial era 1600-1754 --- [3] Revolutionary era 1754-1783 -- [4] Development of a nation 1783-1815 -- [5] Reform era and eastern U.S. development 1815-1850 -- [6] Westward expansion, 1800-1860 -- [7] Civil War and reconstruction 1850-1877 -- [8] Development of the industrial United States, 1878-1899.
