[Lusitan]

A long time ago there was an ethnicity or meta-ethnicity that included three groups, these were the lusitanians, galicians, and vettons and the territory at the south of Tejo (souther Portugal was not inhabited by any of these groups). Nowadays there is a diffrent reality, there are no longer galicians, lusitanians, or vettons in the same way there was before (ethnically). The vettons were assimilated to create the castelhan ethnicity; the lusitanians, part of the galicians, and also the non "lusitanic" (lets call it this way) peoples that lived in southern Portugal (like the conians and celtiberians) merged to give origin to what is now called the portuguese ethnicity. The spanish galicians wich are sub-group of the portuguese (or a related ethnicity) are very related to northern portuguese although they speak a diffrent dialect. Very few things distinguish a castelhan from a portuguese, but the main diffrence is language wich is the same (or a extremly related one) to the one that is spoken in the spanish galiza. One can say there is a cultural-linguistic continuity from La Curunha to Faro and the portuguese (including the galicians) are a different ethnicity, that is separated mostly by the different language.

Anyway don't say Spain is a nation, because it's not even an ethnicity (nation and ethnicity are different things). An ethnicity can become a nation when it has a Myth or colective consciousness (awareness of the group, of a common past and destiny). It is the desire of a true ethno-nationalist that the people/ethnicity gains the unifying Myth. Portugal and Galiza are the same ethnicity (or meta-ethnicity) but don't yet have a very developed common Myth, thus one might consider them diffrent nations nowadays. The proff that Spain is not an ethnicity is that, for example the portuguese are more related to the occitanians then they are to the basques. The peoples from the iberian peninsula don'tform a circle of kinship, the only thing they have in common (and excludes the other white ethnicities) is their geographical location.