1. 1493-1754 Discovering a New World 2. 1755-1783 Resistance and Revolution 3. 1784-1796 Organizing the New Nation 4. 1797-1820 Domestic Expansion and Foreign Entanglements 5. 1821-1832 Steps Toward Equalitarianism 6. 1833-1840 The Challenge of a Continent 7. 1841-1849 Manifest Destiny 8. 1850-1857 A House Dividing 9. 1858-1865 The Crisis of the Union 10. 1866-1883 Reconstruction and Industrialization 11. 1884-1884 Agraranism and Urbanization 12. 1895-1904 Populism, Imperialism, and Reform 13. 1905-1915 The Progressive Era 14. 1916-1928 World War and Prosperity 15. 1929-1939 The Great Depression 16. 1940-1949 The second World War and After 17. 1950-1960 Cold War in the Nuclear Age 18. 1961-1968 The Burdens of World Power 19. 1968-1973 Detente and Domestic Crises 20. 1974-1976 The Challenge of Interdependence 21. 1977-1986 Opportunities and Problems at Home and Abroad