Constitutional amendments: an encyclopedia of the people, procedures, politics, primary documents, campaigns for the 27 Amendments to the Constitution of the United States

V. 1. Bill of Rights (amendments 1-10) : proposed 1789, ratified 1791 : protects individual rights, including freedom of speech, freedom of religion, freedom of the press, the right to assemble, the right to bear arms, the right to due process and the right to a fair trial by jury ; also, the Bill of Rights prohibits unreasonable searches, excessive fines, and cruel and unusual punishment

Eleventh amendment : proposed 1794, ratified 1795 : grants immunity of states from suits from out-of-state citizens and foreigners

Twelfth amendment : proposed 1803, ratified 1804 : revises presidential election procedures

Thirteenth amendment : proposed and ratified 1865 : abolishes slavery and involuntary servitude

Fourteenth amendment : proposed 1866, ratified 1868 : defines citizenship, including immunities, due-process, and equal protection clauses

Fifteenth amendment : proposed 1869, ratified 1870 : prohibits denial of suffrage based on race, color, or previous servitude

Sixteenth amendment : proposed 1909, ratified 1913 : allows Federal government to collect income tax

Seventeenth amendment : proposed 1912, ratified 1913 : establishes election of U.S. senators by popular vote

Eighteenth amendment : proposed 1917, ratified 1919 : establishes prohibition of alcohol

v. 2. Nineteenth amendment : proposed 1919, ratified 1920 : establishes women's suffrage

Twentieth amendment : proposed 1932, ratified 1933 : establishes term commencement dates for Congress

Twenty-first amendment : proposed & ratified 1933 : repeals Eighteenth Amendment

Twenty-second amendment : proposed 1947, ratified 1951 : limits president to two terms

Twenty-third amendment : proposed 1960, ratified 1961 : provides for representation of Washington, D.C., in the Electoral College

Twenty-fourth amendment : proposed 1962, ratified 1964 : prohibits revocation of voting rights due to non-payment of poll taxes

Twenty-fifth amendment : proposed 1965, ratified 1967 : defines process of presidential succession

Twenty-sixth amendment : proposed & ratified 1971 : establishes the right to vote for those 18 years or older

Twenty-seventh amendment : proposed 1789, ratified 1992 : prohibits Congressional pay raises to take effect before next session of Congress

Appendix A. The constitutional amendment process

Appendix B. Ratification of amendments to the US Constitution

Appendix C. Proposed amendments to the US Constitution.