ARCHITECTURE IN PROTOHISTORY: IRON AGE.
 
Iron Age began, in a chronological view, ca. 1.000 b.C., and, as its name shows, came after the discovering and use of iron as a basic metal. So, human groups that had never been very important in civilization come now as new cultural or economical elements, marking the difference between old and new society.
 
Pueblos peninsulares
Peninsular tribes after year 300 b.C.
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Peninsula began to welcome the influence of not "iberian" civilizations. So, power of new groups, as Asirian ones in Eastern Europe, provoked that Phoenicians, excellent navigators and merchants, did "emigrate" to the West in order to find new markets: Iberian Peninsula was just one of their settle points.
 
It is probable that these new relationships between civilizations would have created colonies as Tartessian one.
 
These contacts were completed lately by Greek, Phoenician and Carthaginian foundations. They finished after Second Punic War.
 
"Native" peninsular population marked two areas: iberian one and a second group of indoeuropean and celtic origin, both called the "celtae". These groups usually lived, traded and fought against the "foreigners": Tartessians, Phoenicians, Greeks, Carthaginians and Romans.
 
Later, a new idea of nation will appear: the "Celtiberian": a probable evolution of every original population.
 
This schematic classification was not so clear at this age, since a great number of populations lived together on the Peninsula. More reliable sources come from Greek and Roman historians as Strabo, an expert in geography who left us a clear idea about the tribes named in this map.
 
Following this geographical epitome, we can situate the most important architectural expressions on each zone of influence: