History of the British Isles coalition with the Northern Irish unionist party, the DUP in order to have a working majority in the House of Commons. History of the British Isles The British Isles have witnessed intermittent periods of competition and cooperation between the people that occupy the various parts of Great Britain, the Isle of Man, Ireland, the Bailiwick of Guernsey, the Bailiwick of Jersey and the smaller adjacent islands. Today, the British Isles contain two sovereign states: the Republic of Ireland and the United Kingdom. There are also three Crown dependencies: Guernsey, Jersey and the Isle of Man. The United Kingdom comprises England,
Terminology of the British Isles of Celts inhabiting the islands, but this term was not used by the Greeks or Romans for the inhabitants of Britain or Ireland, nor is there any record of the inhabitants of the British Isles referring to themselves as such. Nevertheless, Roman administration later incorporated the province of Britannia into the praetorian prefecture of Gaul, in common with Hispania, which had Celtiberians. Armorica, where the Bretons would settle, was part of "Gallia Celtica", so there were tertiary relations between the Britons and Gallic Celts at least. In addition, the Parisii of Gallia Celtica are thought to have founded Aldborough in