Add Yahoo as a preferred source to see more of our stories on Google. Long before Spanish colonization, the indigenous people of Peru kept track of important dates and numbers, and perhaps even ...

Here’s what you’ll learn when you read this story: The Inca quipu was a complex system of knotted cords, encoded numerical records and possibly even a full logosyllabic language. New research ...

For more than a millennium, many Andean peoples used an object called a "khipu" (also spelled "quipu" and pronounced "key-poo") to record and communicate information. Khipus were made with cords or ...

Here's what you'll learn when you read this story: The Inca never built a world of silicon chips or copper-wired circuits, and the high-speed hardware of modern times was something they simply didn't ...