1. Why is some knowledge of the history of law important to understanding the law more fully? 2. What are the four sources of law in the United States? 3. Describe the three branches of government and the role of each, including the system of checks and balances. 4. What is the hierarchy among the sources of law in the federal government? 5. What is the system for citing judicial opinions? 6. What are due process and stare decisis, and why are they important? 7. Describe the structure of the federal judicial system.