What was the tribute that the Incas collected from the peoples they conquered?

The Incas collected tribute in the form of raw materials (dried potatoes, wool and textiles) or in the form of exotic goods (feathers of tropical birds, colored stones).

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.