The Incan Empire was short-lived, it only lasted about 100 years but still created so much in that small amount of time. Such as a highway and road system in Peru with over 18,000 miles. Used a system ‘quipu’ for records, math, and language. Also even some how some way were very successful skull surgeries. The Incas had their own beliefs and believed in many gods. they believed the sun god Inti and thought the Incan emperor was a descendant of the sun god. There is traces of their existence found in the ruins of cities and temples.