The nearly complete skeleton, with severed feet and a pugio on the back, leaves the cause of death and burial a "real mystery." Archaeologists excavating a 4,900-year-old fortress in Almendralejo, southwestern Spain, have uncovered the burial of a man who may have been a Roman soldier. The solitary, shallow grave was discovered near one of the defensive ditches of the ancient fortress and contained the remains of a man between 25 and 35 years old, laid face down with a pugio—a Roman dagger—on his back. The dagger was found completely intact and still in its sheath. It has been dated...