“…The fertile croplands of the Black Sea hinterland had been integrated into the Mediterranean Greek trading system by the early 2nd millennium BC. The steady, regular supply of grain from the Black Sea Basin was underway, and was to become by the latest in the fourth century BC 10,11 a key resource maintaining the relatively high population density in the Eastern Mediterranean world. Subsequent developments notwithstanding, for example, hegemony over the majority of Black Sea region by, among others, the Roman, Byzantine, Ottoman and Russian empires, the grain of the Eastern European steppe was an integral part of Eastern Mediterranean food security until the communist takeover 12,13 .…”