Which entity was established to limit the number of cases going to the Supreme Court?

The establishment of federal appeals courts, also known as circuit courts, plays a crucial role in the American judicial system by acting as intermediaries between the district courts and the Supreme Court. This tiered structure helps manage the flow of cases and limits the number of appeals that reach the Supreme Court. Federal appeals courts review decisions made by district courts, and their rulings can often be final, meaning that issues can be resolved without the need for further Supreme Court review.

This system is designed to ensure that the Supreme Court can focus on cases of significant constitutional or federal importance, rather than being overwhelmed by the multitude of decisions made at lower court levels. Thus, by resolving many cases at the appeals level, federal appeals courts effectively reduce the Supreme Court's caseload, ensuring that it can address the most crucial legal and constitutional issues facing the country.