Why were the Inca considered a advanced civilization?

What continent did early man first appear? Who were the Nempilim? Where does the name balderrama come from? Where the name originated? What is Hercules most famouse story? What did they call the payment of conquered nations to Egypt? Where does the surname palladino originate? Who killed graces mother in all fall down? How were Gods divided during the Trojan War? What is the estimate of how many people died in the Trojan war? Was the general Belisarius able to defeat the Persian army? What does the According to this passage what does Odysseus plan to do? Who was an Egyptian queen with a 9 letter name beginning with a n? How many wifes ddid hades have? Who is the musician from Greek mythology who was torn to bits by a group of angry women? Was it the Athens or Spartans that the government gave each citizen a plot of land which was worked by state slaves called helots? Did Massachusetts use slaves? What is the origin of the name Peace? What does the name tamara mean? How do say representing the great country of Egypt in Egyptian language?