More info six justices establishes our first Supreme Court On this day on 1789, The Judiciary Act of 1789 in 1789 set the number of justices at six establishes our first Supreme Court 225 years ago today 225 years ago today US Supreme Court More info U.S. Supreme Court Article 3 US Supreme Court establishes our first Supreme Court US Supreme Court More info establishes our first Supreme Court in 1789 set the number of justices at six On this day on 1789, The Judiciary Act of 1789 US Supreme Court More info establishes our first Supreme Court US Supreme Court establishes our first Supreme Court John Jay 225 years ago today establishes our first Supreme Court establishes our first Supreme Court establishes our first Supreme Court establishes our first Supreme Court establishes our first Supreme Court establishes our first Supreme Court More info More info establishes our first Supreme Court More info More info "This Day in History" page US Supreme Court More info