It looks so modern to know the exact date of a city's foundation!

We, mostly, don't know even the year (if you forget about mythical dates like Rome's foundation)!!
Most (if not all) of the Iberian Peninsula is inhabited since the dawn of Humanity. There are traces of their presence everywhere... from some of the oldest cave paintings, rock carvings and fossilized remains, to burial sites and above all... signs of cultivation of Olives, Olive Oil, vineyards, salt extraction, and more, so much more that predates even the Homo Sapiens.
Some places, have been inhabited continuously for millennia... cities built atop cities... ruins giving place to new buildings, over and over and over... It is almost impossible to dig deep in some cities without involving Archeology.
Some vineyards in Portugal have been producing high quality wine since before the Pyramids. Obviously not the same vines, but the same land.
Tracing the dates of the foundation of some cities, is just impossible. Both in Portugal and in Spain. But, I suppose the same happens all around the Mediterranean coast.
Peace
