The 13, 14, and 15 (1870) amendments give citizenship rights to everyone regardless of race, creed,, or being a former slave.
Once an amendment has been passed it gets added to the consitution. Which means this new amendment has to be followed by each and every citizen of that country. Who ever breaks the amendment may have severe punishments.
26th Amendment.
suffrage amendment
The 26th Amendment
The Twenty-Sixth Amendment guaranteed that any U.S. citizen fighting in the Vietnam War would have the right to vote in American elections.
Third Amendment
11th amendment
Civil Rights became a part of the U.S. Constitution in 1868 when the 14th amendment was adopted. The 14th amendment grantees each citizen "equal protection of the laws".
Can you become a citizen if you have a misdemeanor
The second amendment of the US Constitution.
15th amendment
amendment 11