7 February 1795
The Eleventh Amendment was the first Constitutional amendment adopted after the Bill of Rights. The amendment was adopted following the Supreme Court's ruling in Chisholm v. Georgia, 2 U.S. 419 (1793). In Chisholm, the Court ruled that federal courts had the authority to hear cases in law and equity brought by private citizens against states and that states did not enjoy sovereign immunity from suits made by citizens of other states in federal court. Thus, the amendment clarified Article III, Section 2 of the Constitution, which gave diversity jurisdiction to the judiciary to hear cases "between a state and citizens of another state."
Amendment XI
Note: Article III, section 2, of the Constitution was modified by amendment 11.
The Judicial power of the United States shall not be construed to extend to any suit in law or equity, commenced or prosecuted against one of the United States by Citizens of another State, or by Citizens or Subjects of any Foreign State.