American History Events By Causey Period: 1400 to 1700 European Exploration Period: 1600 to 1800 Slavery 1700 Triangular Trade Period: 1775 to 1781 Revolutionary War 1776 Declaration of Independence Period: 1777 to 1787 Articles of Confederation 1787 Constitution 1789 Bill of Rights 1794 Invention of the Cotton Gin 1803 Invention of the Steamboat 1803 Louisiana Purchase Period: 1804 to 1806 Lewis and Clark Period: 1812 to 1815 War of 1812 Period: 1820 to 1870 Industrial Revolution 1823 Monroe Doctrine Period: 1830 to 1850 Trail of Tears 1840 Manifest Destiny 1850 Westward Movement 1857 Dred Scott Decision Period: 1861 to 1865 Civil War 1864 13th Amendment- Abolition of Slavery 1868 14th Amendment- Equal Treatment Under the Law 1870 15th Amendment- Voting Rights for Black Men Period: 1914 to 1919 World War I 1920 19th Amendment- Voting Rights for Women Period: 1929 to 1930 Great Depression 1930 New Deal Period: 1939 to 1945 World War II Period: 1950 to 1953 Korean War 1954 Brown vs. Board of Education Period: 1955 to 1975 Montgomery Bus Boycott Period: 1955 to 1975 Vietnam War 1963 “I Have a Dream” Speech 2001 September 11th