Who was the incan leader pachacuti?

Pachacuti was the ninth Sapa Inca (ruler) of the Inca Empire, reigning from 1438 to 1471. He is best known for transforming the Inca state into a powerful empire through military conquests, administrative reforms, and the establishment of Machu Picchu as a significant cultural site. Pachacuti's leadership marked a pivotal period in Inca history, expanding their territory and influence across the Andean region. His legacy includes the development of a centralized government and extensive road systems that facilitated communication and trade.