On February 7, 1795, the 11th Amendment to the United States Constitution took effect with ratification by North Carolina. Adopted in the aftermath of the US Supreme Court's ruling in Chisholm v. Georgia, the amendment limited the jurisdiction of the federal courts to automatically hear cases brought against a state by the citizens of another state. Learn more about the meaning and history of the 11th Amendment from the National Constitution Center.

On February 7, 1992, the Maastricht Treaty was signed by the members of the European Community, creating the European Union. Officially called the Treaty on the European Union, the original Maastricht Treaty went into force on November 1, 1993. The current Maastricht Treaty includes amendments from later EU treaties.