What were the major achievements of the Ancient South American civilization?

What were the major achievements of the Ancient South American civilization?

The major achievements of the Ancient South American civilization include the development of advanced agricultural techniques such as terrace farming and irrigation systems, the construction of impressive architectural structures like Machu Picchu and the Nazca Lines, the creation of intricate artwork and pottery, the invention of a complex system of writing known as quipu, and the establishment of sophisticated social and political systems, such as the Inca Empire.