How did the Inca empire send messages?

The Inca Empire used a system of runners known as "chasquis" to send messages across its vast territory. These trained messengers would relay information quickly by running along a network of well-maintained roads, often passing messages from one runner to the next. The Incas also utilized a system of quipu, which involved knotted strings to convey numerical data and complex information, serving as a form of record-keeping rather than direct messaging. Together, these methods enabled efficient communication across the empire.