There are some people who believe that the Aztecs and Incas are the same. They are not the same. The Aztecs lived in Mesoamerica around 1345 and 1521 CE. The Incas, on the other hand, lived in Peru during the ancient times.
They were said to have lived there from 1400 to 1533 CE. Some say that aside from Peru, some of them were also able to go and live in South America. When it comes to their mindset about things, they were also different.
The Incas are known to be more advanced when it comes to thinking especially during that time when technology was not prevalent yet. They believed in the power of the mind. The Aztecs were different. They believed that human sacrifice is needed to ensure that some of their wishes and dreams will come true.