What act was passed that set up the federal court system and what did the act do?

The Judiciary Act of 1789 established the federal court system in the United States. It created a three-tiered structure of federal courts, including the Supreme Court, circuit courts, and district courts. The act outlined the jurisdiction and authority of these courts, allowing for a federal judiciary to interpret and apply laws consistently across the nation. Additionally, it provided for the appointment of federal judges and set the framework for the appointment process.