The Eleventh Amendment to the United States Constitution was ratified in 1795. It establishes that states cannot be sued in federal court by citizens of another state or by foreign citizens. This amendment was created to protect state sovereignty and limit the jurisdiction of federal courts over state matters. The amendment arose from concerns about the balance of power between the federal government and the states. It is often cited in legal cases involving state immunity, reinforcing the principle that states have certain protections against lawsuits, thereby shaping the relationship between the federal government and the individual states in the U.S. legal system.