Pachacuti Inca Yupanqui defeated the invading Chanka confederation and transformed the small Inca state into the vast Tawantinsuyu empire through military conquests and administrative reforms. He reorganized governance, built an extensive road network, and initiated monumental architecture like Machu Picchu. This expansion integrated diverse Andean peoples under Quechua administration and agricultural innovations such as terracing. The empire's rapid growth created a highly centralized state that endured until the Spanish arrival.

Quechua oral poetry and hymns celebrated Pachacuti's deeds, preserving Andean cosmology and history in quipus and songs that influenced later indigenous resistance literature. Poets in colonial and post-colonial Latin America, including those in the indigenismo movement, referenced Inca grandeur to critique colonialism and affirm cultural identity. This shaped narrative traditions blending myth and history in works by authors like José María Arguedas. The event underscored themes of transformation and resilience in regional poetic forms.