Originally Posted by avistew
I don't know much about South America but I wouldn't be too shocked if some of the same thing happened there too. Europeans tend to go to new places and decide what countries will be like.
Here, in a way, the limits were done using the natives knowledge mixed with the fact Portugal also send some conquerors =P.
Spain send some people to conquer and colonize America in the way if they can stay in the place and make a living, they are the owners of that land until they die. If they conquer a tribe in the process, they are also owners of the tribe's lands. Roughly.
Now, Bolivia, they probably has the biggest natives compared to the people which Spanish roots rate. Since almost all those natives are from diferent "tribes" (I don't know a better word in english, sorry!), they also speak a diferent dialect, so, Bolivia took the chance and make official all those dialects.
By the way, about the limits, they are different now of how they were in the past. It's there the Pacific War which change the limits again: Chile anexed some territories from Perú and Bolivia, while Argentina demanded at the same time the part of the Patagonia the other side of the Andes, and Chile agreed, just because we were in the middle of the said War.
Edit: My sister also told me the biggest diference were the fact with Africa, they discovered the map at first, while, with America, they discovered the land while they were explore it.