Two versions of a letter from Christopher Columbus about his discovery of the New World are displayed in Rome. The book on the bottom, produced centuries ago, has just been returned after having been stolen and replaced with a forgery (top). Domenico Stinellis/AP hide caption

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Stolen Letter From Columbus Found In The Library Of Congress And Returned To Italy

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This recently restored painting in the Vatican, created in 1494 by the Renaissance master Pinturicchio, has a small depiction of naked men with feathered headdresses. This may be the first European depiction of Native Americans. The scene, just above the tomb of Jesus, is too small to be seen in this view of the entire painting but is shown in the photo below. Courtesy of Vatican Museums hide caption

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A well-traveled root: A vendor sells sweet potatoes at a market near Manila in 2011. The Portuguese brought the root to the Philippines all the way from the Caribbean. Ted Aljibe/AFP/Getty Images hide caption

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