In ancient Greek and Roman geographic texts, Gadir (known in Latin as Gades, in Greek as Gadeira, and in modern Spanish as Cadiz) stands out as a marker, a boundary. Here was the end of the line, the western edge of civilization, the last traces of urban, settled familiar society. Gadir was inhabited by “people who dwell at the limit where the world ends.” To the north were the barely explored coasts of Iberia, Gaul, Britainnia and mysterious Hibernia (Ireland). To the south lay the even less well known shores of Africa, a land of inhospitable terrain, strange peoples and terrifying wildlife. Due west lay the great Ocean which ran around the edges of the world. Rumors and legends persisted of land across the waters to the west, of Hesperides, of Fortunate Islands or Islands of the Blessed, but none had been there, for the gods did not permit man to cross.
What was life like on this colony at the edge of the world? Archaeological excavation of the city has been limited, because the site has been continuously inhabited and any large-scale excavation would involve unacceptable demolition of the modern city of Cadiz. We are left with the descriptions of ancient historians and what archaeological evidence is available.
Gadir is situated on the Atlantic coast of Spain, just outside the Straits of Gibraltar. Oddly, given its location on the far edge of the Mediterranean world, the ancient sources indicate that the city was the first Phoenician colony founded in the western Mediterranean. The dates given by Velleius Paterculus and Pomponius Mela indicate that the colony was founded shortly after the Trojan War, at around 1100 BC. This would mean Gadir was founded before Carthage, before Utica, before Lixos or any of the other Phoenician colonies. Archaeologists have long disputed the early dates given to Phoenician colonization, but more recent discoveries have placed the founding of the first Phoenician colonies back to at least the late ninth century, definitely prior to Greek colonization of the western Mediterranean. The earliest colonial outposts were likely small and would have left little to no archaeological evidence behind. Alternately, the founding date could have been the date of first contact with the area and establishment of trade, with permanent settlement structures being built at a later date. Whether Gadir was founded in 1100 BC or several centuries later, its great age and precedence over the western Greek colonies seems assured.
The people of Gadir traced their history to an oracle received by the people of Tyre directing them to set up a colony at the “Pillars of Herakles” (the strait of Gibraltar). They sent out an exploratory expedition, which reached the strait but assumed that the passage marked the edge of the world and did not dare to go further. They landed on the Mediterranean side of the straits, but the omens from their sacrifices proved unfavorable and they returned to Tyre. A second expedition was dispatched some time later, which plucked up the courage to venture through the straits and along the Atlantic coast of Spain for 1500 stadia. They found an island, but once again the omens proved unfavorable and the expedition returned. The third Tyrian expedition to the region founded the colony of Gadir. Despite the founding story’s emphasis on the role of oracles, the tale as handed down to us does not mention any favorable omens associated with choosing the successful site. While other texts such as the Voyage of Hanno attest to the great influence given to divination and oracles in Phoenician exploration, one can also safely assume that the third expedition built on the discoveries of the first two. The idea of several scouting expeditions being made in preparation for finding an area for permanent colonization is entirely plausible.
Phoenician colonists were careful and shrewd in selecting the locations for their cities. They preferred to site colonies on small offshore islands or peninsulas, where they could be secured against sieges and attacks. They chose islands with good harbors and easy access to favorable trade winds. Because Phoenician colonies were primarily trade-driven rather than settlement-driven, they only needed small outposts rather than large land areas.
The Tyrian colonists founded Gadir on what was then three small islands at the mouth of the Guadalete River. In today’s city of Cadiz, the islands have since filled in with sediment and connected to the mainland to form a narrow peninsula. The city of Gadir was built on the northern end of the islands, farthest away from the mainland. There was a temple to Ba’al Hemmon in the city proper, but on the tip of the south side was situated a temple to the god Melqart, which would grow to great size and become world famous by time of the Roman Empire. The nearby Guadalquivir River allowed easy access to the interior of Spain for communications and trade
The economic benefits of the site were enormous. The island was just offshore of the Spanish kingdom of Tartessos. The Tartessans appear to have been on friendly terms with the Phoenicians at Gadir and traded heavily with them. Tartessos was rich with mines that produced lead, tin, silver, copper and gold. The most valuable of these minerals was tin. Tin is required for the manufacture of bronze, yet it is a very rare mineral. On the other hand, bronze was used to make almost everything in the ancient world, even after the introduction of iron. Tin was only found in significant amounts in a few locations known to the ancient Mediterranean world, notably Britain, Spain and Germany.
Two of these three locations were most easily accessed through the ocean route. Ships can move faster and carry more goods than caravans of pack animals moving overland. The colony at Gadir put the Phoenicians in prime position to trade not only with Tartessos but with the entire Atlantic coast of the Iberian peninsula as well as the mysterious “Cassiterides”, the “tin islands” commonly associated with the coast of Cornwall. What’s more, the location of Gadir meant they were now in a prime position to monopolize this trade by controlling the Straits of Gibraltar. At first, there was no competition, for no other nation thought to sail this far to trade. By the 6th century BC, all the Phoenician colonies in the western Mediterranean became part of the Carthaginian empire, and from then on Carthage set their foreign relations and national trade policy. The Carthaginian treaty with newly Republican Rome in 508 BC set spheres of influence and trade for each nation. The Romans were forbidden from trading or traveling anywhere west of what is now the north coast of Tunisia. Polybius speculates that this was to prevent the Romans from becoming familiar with the area, and he was probably right. What’s more, archaeological evidence indicates that the Greek colonists in Massalia (modern day Marseilles, France) ceased trading with Tartessos at around 500 BC. It seems that the Carthaginians had a general policy by 500 BC of prohibiting non-Carthaginian trade in their western territories.