1a) Why do historians rely on the work of archaeologists?
1b) When and how did humans migrate into North America?
1c) When and why did Archaic hunter-gatherers inhabit ancient America?
1d) How did agriculture influence ancient American cultures?
1e) What ancient American cultures inhabited North America in the 1490s?
1f) How did the Mexican empire amass power and riches?
1g) How did ancient Americans shape their world and ours?
2a) Why did Europeans launch explorations in the fifteenth century?
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