People think the Incas were not a sophisticated civilization because of their lack of a written language, but they were very intelligent. They had, however, a unique way of communicating: a language that was written in knots.
Although not much is known about this language, the best guess anthropologists have is that the Incas used it as a way of keeping track of numbers. We do know the Incas had multiple knots that they “talked” in. Their main knot also had a distinct color that identified the clan that individual belonged to. Anthropologists think that these knots were mainly used as a census and in accounting. Another good hypothesis anthropologists have is that the Incas used it as a way of keeping track of numbers. Anthropologists also believed that they were possibly used to tell stories and tales of their religion.
The Incas had a rich history. They had the largest empire in the Americas. At the peak of their civilization, their empire stretched 500 kilometers long, in an area which is now modern-day Ecuador. They were at their highest in power during the 15th century. The Incas had a powerful and well-organized government, which needed to be organized because their population was approximately 10 million people. Their capital was located in Cusco. The Incas were known for not having a currency, being an organized society, and until recently not having a written language.