A flattened scrap of metal buried at the site of a 17th-century colonial fort in Maryland was once part of a suit of armor, X-rays reveal.
Archaeologists discovered the slightly concave "slab" that's "about the size of a cafeteria tray" while conducting excavations in a cellar at Historic St. Mary's City, a town in Maryland founded by European colonists in 1634, according to The Washington Post.
