Answer the following questions: 1. true or false: christopher columbus was the first to discover america 2. true or false: christopher columbus was the first to believe the earth is round 3. true or false: christopher columbus believed it was his duty to expand the religion, christianity. 4. what was the line of demarcation? 5. who was the first to cross the mississippi river? 6. who was the first to discover the mississippi river? 7. what christopher columbus known for? 8. what was the reconquista? 9. who is john law? 10. what was the mississippi scheme? bonus question: what were the three african kingdoms that prospered?