<P> Trade in ancient Greece was free: the state controlled only the supply of grain . In Athens, following the first meeting of the new Prytaneis, trade regulations were reviewed, with a specialized committee overseeing the trade in wheat, flour, and bread . </P> <P> The number of shipwrecks found in the Mediterranean Sea provides valuable evidence of the development of trade in the ancient world . Only two shipwrecks were found that dated from the 8th century BC . However, archeologists have found forty - six shipwrecks dated from the 4th century BC, which would appear to indicate that there occurred a very large increase in the volume of trade between these centuries . Considering that the average ship tonnage also increased in the same period, the total volume of trade increased probably by a factor of 30 . </P> <P> Greece's main exports were olive oil, wine, pottery, and metalwork . Imports included grains and pork from Sicily, Arabia, Egypt, Ancient Carthage, Bosporan Kingdom . </P> <P> While peasants and artisans often sold their own wares, there were also retail merchants known as kápêloi (κάπηλοι). Grouped into guilds, they sold fish, olive oil, and vegetables . Women sold perfume or ribbons . Merchants were required to pay a fee for their space in the marketplace . They were viewed poorly by the general population, and Aristotle labeled their activities as: "a kind of exchange which is justly censured, for it is unnatural, and a mode by which men gain from one another ." </P>

What are three places that mainland greece imported (brought in) goods from