Final answer:
The passage of the Eleventh Amendment marked a change for the functions of state courts by limiting the federal courts' jurisdiction over cases involving states.
Step-by-step explanation:
The event that marked a change for the functions of state courts was the passage of the Eleventh Amendment by Congress in 1794 and ratified by the states in 1795.
The Eleventh Amendment prohibited the federal courts from hearing cases brought against a state by citizens of another state or by citizens of a foreign state.
It demonstrated that Congress had the power to change the jurisdiction of the courts and established a limitation on the federal courts' authority.