Conversation so far:
What were some of the terminology used?
Indigenas or pueblos indigenas.
What else?
pueblos nativos or nativos (lit.
"native peoples") may also be heard.
Who came up with these terms?
and pueblos aborigenes (aboriginal peoples) is common in Chile.
What did you find the most interesting in your article?
Application of the term "Indian" originated with Christopher Columbus.

Question: Why did he use the term Indian?
Self-contained rewrite: Why did Christopher Columbus use the term Indian?