USA Timeline By cfho Period: 1775 to 1783 The war of Independence 1776 The Declaration of Independence 1789 The Constitution 1791 Bill of Rights adopted 1792 U.S. Mint Stablished 1793 Eli Whitney invents cotton gin 1794 Whiskey Rebellion 1840 The Mexican War Period: 1861 to 1865 Civil War 1862 The Homestead Act 1863 Slavery Abolished 1929 The Depression 1941 Pearl Harbor 1950 Civil Rights Movement Period: 1950 to 1991 The Cold War 1963 "I have a Dream" Period: 1963 to 1975 The Vietnam War Period: 1964 to 1965 Civil Rights 2001 9/11 2021 Capitol Attack