"No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws."
The 14th amendment codifies who is a US Citizen, and says that states must treat all citizens equally.
The 14th amendment requires state governments to give their citizens the same rights that the federal government does. Before the 14th amendment, the state governments had almost unlimited authority over their citizens.
14th Amendment
The 14th Amendment established naturalism, and forced state governments to abide by the federal constitution.
14th
The 14th Amendment to the U.S Constitution enforces federal law, including the Bill of Rights, on the state governments. However, before the 14th Amendment, states did have the ability to "violate" the rights of their citizens.
First amendment to the Constitution. It prevents the Federal government from declaring a state religion and from prohibiting the free exercise of religion. The 14th amendment extends this amendment to apply to state governments as well.
The 5th Amendment introduced it; the 14th Amendment applied it to local governments.
In the Case Afroyim v. Rusk, the Supreme Court decides that the 14th amendment prevents congress from striping a citizen of their citizenship.
Outlawed segregation imposed by governments
14th amendment
Oregon
Tennessee