The prosperity of the majority of Greek city-states was based on agriculture and the ability to produce the necessary surplus which allowed some citizens to pursue other trades and pastimes and to create a quantity of exported goods so that they could be exchanged for necessities the community lacked. Cereals, olives, and wine were the three most produced foodstuffs suited as they are to the Mediterranean climate. With the process of Greek colonization in such places as Asia Minor and Magna Graecia Greek agricultural practice and products spread around the Mediterranean.
This is a companion discussion topic for the original content at https://www.worldhistory.org/article/113/food--agriculture-in-ancient-greece/.