On the basis of this putative root , Arana proposed the name Euzkadi for an Basque nation , composed of seven Basque historical territories .
In the 19th century , the nationalist activist Sabino Arana posited an original root euzko which , he thought , came from eguzkiko .
On the basis of this putative root , Sabino Arana proposed the name Euzkadi for an Basque nation , composed of seven Basque historical territories .
In the 19th century , the nationalist activist Sabino Arana posited an original root euzko which , he thought , came from eguzkiko .