major rebuilding of Hadrian's Wall was included among these efforts. The province hosted a single legion during Caracalla's reign, the VI Victrix, which was stationed at Eboracum. However, although Britannia Inferior had only the single legion (compared to the two stationed in Britannia Superior) the northern province actually had more soldiers than the south did, as a result of the large number of auxiliaries in the north. After the successes of Severus against the northern tribes, these troops furnished small units known as exploratores which were sent beyond the frontier to oversee native activities and ensure that the terms of Roman treaties with these groups were upheld. These measures were mostly effective and during Britannia Inferior's existence the northern border was largely peaceful after the campaign of Severus. From 260 to 273 AD Britannia Inferior, along with much of the rest of the western Empire, broke away from the rest of the Roman Empire to form the Gallic Empire. The second half of the province's history also coincided with a period of poor economic conditions across Roman Britain. The symbol of the province, attested by several lead sealings, was a bull. Reorganisation In 296, the emperor Diocletian conducted a major reorganisation of the empire. The newly named Diocese of Britannia was subdivided into four provinces, Britannia Prima and Maxima Caesariensis from Britannia Superior and Britannia Secunda (capital in Eboracum) and Flavia Caesariensis (capital in Lindum) from Britannia Inferior. See also Britannia Superior ("Upper Britain") Roman Britain, the Roman controlled area in Britain of which Britannia Inferior and Superior were the two primary subdivisions References Late Roman provinces States and territories established in the 190s 3rd century in Roman Britain States and territories disestablished in the 3rd century 197 establishments 190s establishments in the Roman Empire 2nd-century establishments in Roman Britain 290s disestablishments in the Roman Empire 3rd-century disestablishments in Roman Britain Northern England