Ancient Stone Weapons Not Ancient Enough

The traditional story of the peopling of the New World holds that ancient migrants out of northeast Asia slipped into the Americas bearing finely shaped stone projectiles, so-called "Clovis points," after the town in New Mexico where they were first uncovered. This Clovis culture rapidly spread throughout the empty continents and by 1,000 years after their arrival had reached the southernmost tip of what is now South America, making them the original ancestors of indigenous Americans. A number of controversial archaeological sites have challenged this theory and now, by using more advanced dating techniques, researchers may have killed it, throwing the original population of the Western Hemisphere into question again.

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