laying out of the roadways. Agrippa then went to Hispania in 19-18 BC to personally direct the war against the Cantabrians in the north of the peninsula; Augustus himself returned to Hispania and remained for a period between 16 and 13 BC doing administrative work. He and his advisors set about devising an ambitious programme to restructure the administration of the territory, its primary objectives being the establishment of new cities, the construction of roads connecting them, and the distribution of large areas of land to be parcelled out among veteran professional soldiers. With the complete subjugation of Hispania, Augustus determined to lay out a proper road system like that which Agrippa had built in Gaul, and the basic network appears to have been completed in his reign. He repaired and relaid the coastal road from Tarraco (the imperial headquarters during his residence, Augustus made it the capital of Hispania Tarraconensis), through Valentia to Carthago Nova (Cartagena), as well as the road through the Baetis valley by way of Corduba and Hispalis to Gades itself, and in this section a large number of milestones bearing his name have been found. The isolation of Hispania from the rest of the Mediterranean world was a circumstance addressed by the building of Augustus' road network. The itineraries and milestones, as well as traces of the ancient roads, suggest that this was an intensive project. There were four important routes between the conventus capitals of Bracara Augusta (Braga) and Asturica Augusta (Astorga), the third hub of the system being the conventus capital Lucus Augusti (Lugo). Caesaraugusta (Zaragoza) and Carthago Nova were conventus capital cities that were also crossroads and the terminuses (capita) of roads. Augustus ordered the building of the road from Caesaraugusta to Tarragona, passing through Ilerda (Lerida) and Huesca. Domitian extended the road from Caesaraugusta to Olispo (Lisbon), by way of Toletum (Toledo) and Augusta Emerita. The latter city was the starting point of the road (later the so-called "silver way"), which passed northward through Salamanca to Oceloduri. There it met the road following the course of the Ebro and then into the region of north-central Hispania. Asturica Augusta, the terminus of the "silver route", was an important junction, where the highways to Lusitania and the Cantabrian coast intersected. It later became the celebrated pilgrimage road to Santiago de Compostela. In the south, Emerita and Gades were connected by the Hispalis road.