Agriculture, commerce, and mining were the engines that drove New Spain, and past historians have treated these economic categories as sociological phenomena as well. For these historians, society in eighteenth-century New Spain was comprised, on the one hand, of creoles, feudalistic land barons who were natives of the New World, and, on the other, of peninsulars, progressive, urban merchants born on the Iberian peninsula. In their view, creole-peninsular resentment ultimately led to the wars for independence that took place in the American hemisphere in the early nineteenth...