What was a development of the Inca civilizations?

Answer 1

One significant development of the Inca civilization was their advanced system of agriculture, which included terracing and irrigation techniques that allowed them to cultivate crops in the rugged Andean environment. They developed a network of roads and bridges, facilitating trade and communication across their vast empire. Additionally, the Incas implemented a centralized economy and a system of record-keeping using quipus, which were knotted strings that conveyed numerical information. These innovations contributed to the Inca's ability to manage resources and maintain control over their territory.