Ask Mr. Donn
about
The Incredible Incas
Question:
What system of measurements did the Incas invent?
Answer:
First, like most ancients they invented a calendar. This helped plan the planting and harvesting seasons as well as festivals for the gods.Second they invented a system to keep track of things using a knotted string. Where the knots were and how many and what shape told a story. Inca Inventions