What are some inca acomplichments?

Question: What are some inca acomplichments!?
Best Answer - Chosen by Asker:

They developed a system called quipo!. It was a way they kept records, by knotting string and placing it in a certain way!.

It's very odd but very cool that they could read these things after knotting them a certain way!.

I believe they kept records like military things, along with their agricultural harvests and things!.

The Incas also constructed terraces and stone aqueducts to farm on their mountainous terrain of Machu Picchu!. They also built suspension bridges along this mountain in order to span ravines for their crops!.Www@QuestionHome@Com

The Mita systemWww@QuestionHome@Com

machu pichuWww@QuestionHome@Com