| Term | Definition |
| XI | citizens of foreign countries can not sue a state in a national court |
| XII | If no candidate wins a majority of electoral votes, the House of Reps selects the president from among the top 3 candidates |
| XIII | slavery outlawed |
| XIV | no state can take away the rights of a united states citizen |
| XV | Black males' right to vote protected |
| XVI | national income tax created |
| XVII | Senators no longer appointed by state legislatures. Now to be directly elected by citizens |
| XVIII | "prohibition" takes place making alcohol illegal |
| XIX | Women given the right to vote |
| XXI | Prohibition ends, alcohol legal again |
| XXII | Two term limit set for president |
| XXIII | Washington D.C. gets 3 electoral votes |
| XXIV | Poll tax outlawed |
| XXV | Presidential succession more clearly defined |
| XXVI | 18 year old American citizens given the right to vote |
| XXVII | Congressional pay raise restrictions put into effect |