The exchange of foodstuffs began as a deliberate policy of the Spanish crown. Old World crops and livestock were introduced to Mexico and Peru to support a civilized (that is, Spanish) way of live for the colonists, and New World exotica were sent to Spain as novelties and for agricultural exploitation. But once tomatoes had taken root in Italy, once cattle provided beef and gave milk in Mexico, then local cooks put these wonderful new foods to new uses. And the world changed.

Author: Raymond Sokolov