Hernan Cortes is the explorer not correctly matched with his region. He did not explore western South America, but instead explored Mexico. He fought in Mexico and led the downfall of the Aztec Empire. For this, he received a high-ranking medal and this helped him move up as a noble of a better level in the social ranking. He also used the tactics of being friends with some indigenous groups versus others. He brought large parts of Mexico under the Spanish Castille rule.
The spread of ideas, customs, and technologies from one people to another is called cultural exchange.
Explanation:
Cultural exchange has been happening for almost as long as there are cultures along the world.
Cultures only happen due to amalgamations of different ideas of lifestyle and how people must live their lives.
These ideas are shared between communities in terms of customs that they follow and technologies that they are using, along with their art, craft products and religions.
They are adopted and changed by the people taking up the same from them and so is culture spread.