How were messages delivered in the Incan Empire?

In the Incan Empire, messages were delivered through a system of runners known as "chasquis," who were highly trained messengers. They would run along a network of well-maintained roads, passing information quickly between various locations. The chasquis carried quipus, a system of knotted strings used for record-keeping, to convey numerical data and other important information. This efficient communication system helped maintain control and coordination across the vast empire.