A branch from this road ran to Olbia (followed closely by the modern highroad and railway also), and was perhaps the main line of communication, though the itineraries state that the road from Carales to Olbia ran through the centre of the island by Biora, Valentia, Sorabile (near Fonni) and Caput Thyrsi.
Many milestones belonging to the road from Carales to Olbia have been found, but all but one of them (which was seen at Valentia) belong to the portion of the road within 12 m.
In 368 Theodosius was sent to drive back the invaders; in this he was completely successful, and established a new British province, called Valentia, in honour of the emperor.
The shore end was landed in Valentia Harbour on the 5th of August, and next morning paying out was started by the " Niagara," to which the laying of the first half had been entrusted.
She started from Valentia at the end of July, but fault after fault was discovered in the cable and the final misfortune was that on the 2nd of August, when nearly 1200 m.