Hello there,

I would like to recommend the addition of the Celtiberians (modern Portuguese and Spanish cultures) cultures, such as: Vascones, Tartessos (Turdetani), Astures, Cantabri, Lusitani, Vettones and a long etcetera (if you look for Celtiberians in the wikipedia, even in English you will find some information. Also I recommend reading the Wikipedia's article about the Celtic culture).

Today there are many traces of these towns, specially on the North of Spain. Euskera is, probably or to my knowledge, the oldest language still spoken in Europe, and maybe in the entire world. I mean, is not the first language, is the oldest modern language still spoken (to my knowledge).

In Iberia, during the feudal age, several celtics languages were still spoken (not only Euskera), and during these years, some Celtic languages were mixed with Latin, like the Gallego (Galician in English, not to be confused with Gallaecian). And today many of their traditions are still present in the North of Spain and Portugal.