Texas find suggests earlier settlers in N. America
• APThe 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. Thousands of artifacts dating to between 13,200 and 15,500 years ago were uncovered
http://www.washingtonpost.com/national/texas-dig-solidifies-evidence-that-the-first-americans-were-here-15000-years-ago/2011/03/24/ABgKi4PB_story.html