explain the historical circumstances that led to the historical development depicted in the mp above

The historical circumstances that led to what is shown in the map above is the European Expedition/colonization of the central and South America.
This has to do with the exploration of the area after Christopher Columbus discovered it on his way to the west Indies.
The areas that are shown in the map are the areas that make up what is Spanish and Portuguese America and how they colonized the people.
Read more on colonization here:
https://brainly.com/question/510352
#SPJ1