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Home / Education / Search / COMING INTO AMERICA: SCIENTIFIC AMERICAN FRONTIERS
COMING INTO AMERICA: SCIENTIFIC AMERICAN FRONTIERS
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Format: DVD » Add to Cart » Request Preview Access Catalogue Number: 040468DV ISBN number: 0793646456 Producer: PBS Video Subject: Science Language: ENGLISH Grade Level: 9 - Post Secondary Country of Origin: U.S. Copyright Year: 2004 Running Time: 60 Rights: PPR Who were the first Americans? Did they get here by land or sea? Did a single group populate the continent, or did many? Experts used to agree that the first Americans walked across the Bering land bridge from Asia about 12,000 years ago, eventually colonizing all of North and South America. But exciting recent finds at sites on both continents have triggered new theories. Alan Alda tries to find out who's saying what, and why. |
