Ancient Greece and wine help satisfy demand. Wine historians have theorized that the Greeks may have introduced viticulture to Spain and Portugal, but competing theories suggest that the Phoenicians probably reached those areas first. The grape clusters, vines and wine cups that adorn Greek coins from classical times bear witness to the importance of wine to the ancient Greek economy. With every major trading partner, from the Crimea, Egypt, Scythia, Etruria and beyond, the Greeks traded their knowledge of viticulture and winemaking, as well the fruits of their own production. Millions of amphora pieces bearing the unique seals of various city-states and Aegean islands
Names of the Greeks Constantine Porphyrogennitos of the 10th century. His accounts discuss about the revolt of a Slavic tribe in the district of Patras in the Peloponnese. Constantine states that the Slavs who revolted first proceeded to sack the dwellings of their neighbors, the Greeks ("ton Graikon"), and next they moved against the inhabitants of the city of Patras. Overall, ancient Hellenic continuity was evident all throughout the history of the Eastern Roman Empire. The "Byzantines" were not merely a general Orthodox Christian populace that referred to themselves as merely "Romans." Though they used the term for legal and administrative purposes, other terms