Caristii were a tribe reported by Roman historians in Northern Hispania west of the Deba and east of the Nervion rivers. Their historical territory today corresponds very well with the extension of the Biscainne dialect of the Basque language, so it is assumed that they spoke Basque already in Roman times. Roman theater at Mérida; the statues are replicas Hispania was the name given by the Romans to the whole of the Iberian Peninsula (modern Portugal, Spain, Andorra and Gibraltar) and to two provinces created there in the period of the Roman Republic: Hispania Citerior and Hispania Ulterior. ... Deba is a town located in the province of Gipuzkoa, in the autonomous community of Basque Country, in the North of Spain. ... The river Nervión runs through the city of Bilbao, Spain into the Bay of Biscay. ... Basque (in Basque: Euskara) is the language spoken by the Basque people who inhabit the Pyrenees in North-Central Spain and the adjoining region of South-Western France. ...