Archaeologists digging in a 400-year-old church in Jamestown, Virginia, have found a headless body that might be that of Sir George Yeardley, one of the first politicians — and slave owners — in the American colonies. Few people have heard of Yeardley, but he played a key role in America's history. The Jamestown governor oversaw the House of Burgesses, the first elective governing body in the English colonies. Scientists still aren't sure if the headless body is Yeardley's, but shortly after uncovering the skeleton, they made another finding that could help answer that question. They discovered a handful of teeth,...