Where did our legal system originate from? Discuss the development of the court system

Where did our legal system originate from? Discuss the development of the court system; Special Federal Courts, Federal District Courts, Federal Courts of Appeal, United States Supreme Courts, State Courts, Inferior Courts, Courts of Original General Jurisdiction, and Appellate Courts. Explain when each court system was developed, why it was developed, and what each specified section of the court system does.