Velcroman1 writes "The discovery of ancient stone tools at an archaeological dig in Texas could push back the presence of humans in North America, perhaps by as much as 2,500 years. The find was located 5 feet below materials left by the well-known Clovis culture, which was once thought to have been the first American settlers around 13,000 years ago. It was 'like finding the Holy Grail,' Waters said in a telephone interview. To find what appears to be a large open-air campsite 'is really gratifying. Lucky and gratifying.'"
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