The first inscription was discovered in 2003 at ancient Hegra in Hedjaz, an oasis city on the Incense Road. Today it is known as Al-Hijr (Mada'in Salih)...Hegra was the major center in the south of the Nabataean kingdom that in the 1st century CE also controlled other oasis towns, such as nearby Taima or Dumatha. The kingdom was one of Rome's client states along its eastern border. When the last Nabataean king died in 106 CE, Trajan had already prepared the orders for imperial troops in neighboring provinces to swiftly move in and occupy his territory before any resistance could...