Answer:
Some of the achievements of the Inca civilizations included:
Farming: They stood out for being very good agriculturists. They created terraces in the mountains where they cultivated: corn, potatoes, tomatoes, peanuts, pineapples among many others. They built aqueducts that transported water to the places of cultivation.
Quipus: The Incas had an accounting system that was based on quipus. They were strings of several strings tied to a central line with knots. The number and position of the knots, as well as the color of each string, represented information about merchandise and other resources.
Musical instruments: The Incas loved music. They invented many wind and percussion musical instruments. These instruments are still used by the inhabitants of the regions where the Inca culture was developed.
