Archeologists work in an ancient cemetery with dozens of skeletons that was unearthed during works to expand the Uffizi Gallery's exhibit space, In Florence, Italy, Thursday, Feb. 13, 2014. In five months of digging, archaeologists uncovered 60 well-preserved skeletons in a cemetery apparently made in a hurry, perhaps a mass grave, with bodies laid side-by-side at roughly the same time. Archaeologist Andrea Pessina said DNA testing will aim to find evidence of what "certainly was an extremely lethal epidemic," possibly the plague. (AP Photo/Francesco Bellini)

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