The Inca Empire was the largest empire in pre-Columbian America. In the 15th century it incorporated a large portion of western South America, centered on the Andean Mountains. From their mountain capital at Cusco, the Incas ran an efficient government. The Inca Empire was a federal systam consisting of central government with 4 quarters. Each of them had local governor and it was divided again into smaller districts. The Empire was 2,800 miles long. A complex system of roads and suspension bridges was built through out the Empire. The Incas used those roads for trade, communications and troop movements. Roughly 15,000 miles of road linked the Inca Empire together.
The geography of the Inca Empire, with its rugged terrain, shaped their agricultural methods, necessitated an extensive road system for communication and military movement, and influenced their administrative strategies. Cuzco was established as the central hub, and local traditions were integrated to maintain stability and control. This adaptability to geography was crucial for the Incas' governance and expansion of their empire.
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