CIVILIZATION IMPOSSIBLE WITHOUT FOOD-PRODUCTION
Civilizations have to be made up of many people. Some of the people live in the country; some live in very large towns or cities. Classes of society have begun. There are officials and government people; there are priests or religious officials; there are merchants and traders; there are craftsmen, metal-workers, potters, builders, and so on; there are also farmers, and these are the people who produce the food for the whole population. It must be obvious that civilization cannot exist without food-production and that food-production must also be at a pretty efficient level of village-farming before civilization can even begin.
But people can be food-producing without being civilized. In many parts of the world this is still the case. When the white men first came to America, the Indians in most parts of this hemisphere were food-producers. They grew corn, potatoes, tomatoes, squash, and many other things the white men had never eaten before. But only the Aztecs of Mexico, the Mayas of Yucatan and Guatemala, and the Incas of the Andes were civilized.