14th amendment
Grants equal protection under the law to all citizens
13th amendment
Abolished slavery
15th amendment
Grant suffrage to African-American men
17th amendment
Direct election of Senators
18th amendment
Prohibition
19th amendment
Women suffrage 1920
23rd amendment
Granted suffrage to citizens of Washington DC
24th amendment
Abolished poll tax
26th amendment
Lowered the voting age from 21 to 18