How did congress organize the judicial systems?

Congress organized the judicial system through the Judiciary Act of 1789, which established the framework for the federal court system. This act created a three-tiered structure consisting of the Supreme Court, circuit courts, and district courts. It defined the jurisdiction of these courts and set the number of justices on the Supreme Court. Additionally, Congress has the authority to create and modify lower courts as needed, ensuring the judiciary can adapt to the nation's needs.