The Fourteenth Amendment was adopted on July 28, 1868.

The Fourteenth Amendment according to the Supreme Court of the United States, in the Slaughterhouse Cases, changed citizenship under the Constitution. Citizenship of a State was now to be considered as separate and distinct from citizenship of the United States. A citizen of a State was to be considered as separate and distinct from a citizen of the United States.

A citizen of the United States is located at Section 1 of the Fourteenth Amendment. A citizen of a State is to be found at Article IV, Section 2, Clause 1 of the Constitution of the United States of America.

A citizen of the United States is to identified his citizenship in a federal court by averring that he or she is a citizen of the United States AND a citizen of a State of the Union. A citizen of a State is to aver that he or she is a citizen of a State of the Union.

A citizen of a State can be a party to a suit based on diversity of citizenship, and also under Article III, Section 2 of the Constitution of the United States of America.