Answer:
The overwhelming majority of court decisions that define American civil liberties are based on the Bill of Rights, the first ten amendments added to the Constitution in 1791. ... Civil rights are also protected by the Fourteenth Amendment, which protects violation of rights and liberties by the state governments.
Step-by-step explanation:
14th Amendment - Citizenship Rights, Equal Protection, Apportionment, Civil War Debt | The National Constitution Center.