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
Ancient Greece and wine digestive aid. The Greeks were also aware of some negative health effects, especially those arising from the consumption of wine beyond moderation. Athenaeus made frequent mention of wine's ability to induce hangover and suggested various remedies for it. The poet Eubulus noted that three bowls ("kylikes") were the ideal amount of wine to consume. The quantity of three bowls to represent moderation is a recurring theme throughout Greek writing (today, the standard 750 ml bottle contains roughly three to six glasses of wine, depending on serving size). In his c. 375 BC play "Semele or Dionysus", Eubulus has Dionysus say: