The nineteenth amendment ensures the right for everyone no matter their sex or race to vote.
The twentieth amendment determined the terms of a president, vice president, and Congress.
The twenty first amendment repealed the eighteenth amendment.
The twenty-second amendment set term limits for the president. This is confused with the twentieth amendment, but it sets what time the presidency shall be moved on, not when his term shall end.
The twenty-third amendment gave the population of D.C. the right to vote in presidential elections.
The twenty-fourth amendmnet ensured the right to not be taxed while voting.
The twenty-fifth amendment gave the vice president power to be acting president if the current president is disabled.
The twenty-sixth amendment set the minimum voting age to 18 years.
The twenty-seventh amendment states that congressional pay raises can't go into effect until after the next congressional election.