. Why do historians rely on the work of archaeologists?2. When and how did humans migrate into North America?3. Why did Europeans launch explorations in the fifteenth century?4. What did Spaniards discover in the western Atlantic? 5. Why did Hamilton’s economic policies provoke such controversy?6. What were the sources of political stability in the 1790s?7. Why did the South become so different from the North?8. Why did Congress object to Lincoln’s wartime plan for reconstruction?
