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American beginnings
How old is America?
Radioactive time
How did the Americans come?
First settlers
Corn on the cob
Mystery of the mounds
Mound mystery solved
Dams and diggers
Ancient Southwest
Eskimo antiquity
Mathematical Mayas
Skulls and pyramids
Andean Incas.
How old is America?
Radioactive time
How did the Americans come?
First settlers
Corn on the cob
Mystery of the mounds
Mound mystery solved
Dams and diggers
Ancient Southwest
Eskimo antiquity
Mathematical Mayas
Skulls and pyramids
Andean Incas.