From Seven Myths of the Spanish Conquest, by Matthew Restall (Oxford, 2004), Kindle Loc. 3230-3243:
If we focus only on the century following Columbus’s voyages we see Mexica and Inca warriors as losers, West Africans as fighting slaves, and Spaniards as quite reasonably contemplating a world empire. But the age of expansion began with the rise of empires outside Europe, with the Mexica fanning out across Mesoamerica and the Inca dominating the Andes, and in West Africa with the rising of the Songhay empire from the ashes of that of Mali. In Europe, the Ottomans and the Muscovites began empire building before the Spaniards, as did the Portuguese—who beat their Iberian neighbors in the race for a sea route to East Asia. And after the sixteenth century the Spanish empire was gradually eclipsed by the trading and colonial networks of the Dutch, English, and French.
Looking at human history over thousands of years, the Spanish Conquest is a mere episode in the globalization of access to resources of food production. The plants and animals of certain Old World environments and regions have a greater potential as food, and the peoples of those regions have enjoyed advantages over others as a result. But eventually, through uneven encounters, those advantages have been introduced to the previously disadvantaged regions. In the case of Europeans introducing new foods to Native Americans, the parallel introduction of Old World diseases made the encounter especially uneven, while colonialism hindered native access to these new resources. This process is too broad and complex to be understood in terms of the alleged and simple “superiority” of one group of people over another. It is also a process that is incomplete. We are still living through the long period of uneven encounters and the gradual globalization of resources.