Ancient civilizations murdered and enslaved other civilizations to gain access to foreign resources and expand their kingdoms. The belief in the abundance of gold in the Americas made Spain invest heavily in exploration.
The investment in explorations of the American territory was expensive, but it was rewarded when gold was found, as well as silver, which brought many riches to Spain.
This shows how ancient nations had the urge to dominate other nations, to exploit their resources and wealth. The problem is that this exploitation was done violently, promoting slavery and extermination.
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More information about the Spanish Empire at the link:
https://brainly.com/question/11927099