Until the 1980s, the Roman frontier in modern Jordan was among the least studied of the empire's far-flung border regions. From 1980 until 1989, the Limes Arabicus Project investigated the frontier east of the Dead Sea. Excavation focused on the late Roman legionary fortress of el-Lejjun as well as soundings of four smaller but contemporaneous forts. The project's regional survey recorded over five hundred other archaeological sites in the area, dating...