EDINBURGH, SCOTLAND—Construction work to build a new classroom at a school in the town of Leith, north of Edinburgh, has uncovered human remains. “This seems to be the site of an unknown, unmarked grave dating to the seventeenth century,” City of Edinburgh Council archaeologist John Lawson told BBC News. Lawson thinks the person may have been killed by the plague, but the skeleton will be analyzed for more information. For more on archaeology in Scotland, go to "Viking Treasure Trove."