How were the Inca rulers able to maintain control over their vast empire?

The Inca rulers maintained control over their vast empire through a combination of efficient administration, a network of roads, and a system of communication known as the chasqui. They implemented a centralized government that enforced laws and collected taxes, often integrating local leaders into their administration to ensure loyalty. Additionally, the Incas employed a policy of resettlement, relocating populations to prevent rebellion and promote cultural assimilation, which helped reinforce their authority across diverse regions.