how does food reflect a history of cultural diversity in American Foodways?

Answer 1

I don't know if this will help: The canned foods we have today were invented for the troops in Napoleons armies, canned pork, Bordens milk was canned for the troops in the civil war and other canned products grew from this, war was the fact that canned good came into being. Along with this refrigeration, cars from the railroad were refrigerated to haul food products to the front lines, then to parts of the nation from the packing houses.
As the country grew, the need for longer distances hauling without spoilage was in demand. Cooked foods, seasoned foods.

The Mexicans devised spiced foods to cover the smell of spoilage, hot spicy foods as they are today.