The Inca invented a system of farming called Terrance farming. in this method of farming they stacked layers of material on on top of one another and built them into the mountains. they used this method to build there Capitol city.
The Inca will only do sacrifices in emergency's for example if a war has started. to have your child sacrificed was considered a great honored they were treated well up to the point of the sacrifice. they were picked from birth to become the sacrifice they will do the act by having them run up a mountain and freeze to death
the Spanish invaded with 150 men. they gave the a diaes ost of the work. Francisco Eduardo was the man who lead the army to invade.