Until recently, most scientists believed that the first humans came to the Americas 13,000 years ago. But new archaeological findings from a cave in Oregon are challenging that assumption. Lee Hochberg of Oregon Public Television reports on the controversial discovery.

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Born into the Muscogee Creek Nation in Oklahoma, Joy Harjo's poetry, song and saxophone music honor the Native American spirit.

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England's Queen Elizabeth II visits the historical settlement of Jamestown Friday to mark the 400th anniversary of the town's founding. Three historians discuss the settlement's significance and how views of its history have changed over time.

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