The Caristii were a tribe reported by Roman

Ancient Rome

Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

 historians in Northern Hispania

Hispania

Another theory holds that the name derives from Ezpanna, the Basque word for "border" or "edge", thus meaning the farthest area or place. Isidore of Sevilla considered Hispania derived from Hispalis....

 west of the Deba

Deba

- Geography :*Deba, Gipuzkoa, a town in the Basque Country*Deba , a river in the Basque Country*Deba, Nigeria, a town in the Yamaltu/Deba Local Government Area of Gombe State- Other :*Deba bocho, a Japanese type of kitchen knife...

 and east of the Nervion

Nervión

The river Nervión runs through the city of Bilbao, Spain into the Cantabrian Sea .It is also known as Estuary of Bilbao on its final tract, from the joining with Ibaizabal river to the sea.-Geography:...

 rivers, in modern Biscay

Biscay

Biscay is a province of Spain and a historical territory of the Basque Country, heir of the ancient Lord of Biscay. Its capital city is Bilbao...

 and Alava

Álava

Álava is a province of Spain and a historical territory of the Basque Country, heir of the ancient Lord of Álava. Its capital city is Vitoria-Gasteiz which is also the capital of the autonomous community...

. Their historical territory today corresponds very well with the extension of the Biscainne dialect of the Basque language

Basque language

Basque is the ancestral language of the Basque people, who inhabit the Basque Country, a region spanning an area in northeastern Spain and southwestern France. It is spoken by 25.7% of Basques in all territories...

.

The alleged 2006 discoveries at Iruña-Veleia

Iruña-Veleia

Veleia was a Roman town in Hispania, currently located in the Basque Country, Spain. The site is located in the municipality of Iruña de Oca, 10 kilometers west of Vitoria. The town was an important station on the Roman road ab Asturica Burdigalam that ran parallel to the coast of the Bay of Biscay...

of old Basque texts hinted that they already spoke Basque in Roman times. However, all these texts turned out to be a fraud, as concluded by the 26 experts who analyzed the discoveries in 2008