Which civilization is described as the largest empire?

The Inca Empire is described as the largest empire in pre-Columbian America, stretching over a significant portion of the western South American continent. At its height, the empire extended from present-day southern Colombia down through Ecuador, Peru, Bolivia, and into northern Chile and Argentina. This vast area encompassed diverse ecological zones and cultures, allowing the Incas to develop advanced agricultural practices, impressive engineering feats, and a resilient administrative system that enabled them to manage such a large territory effectively.

The well-known road network, known as the Qhapaq Ñan, facilitated communication and governance across the empire, which contributed to its significant influence and power in the region. The Incas are also recognized for their sophisticated society, including advancements in architecture, agriculture (such as terrace farming), and an organized labor system. This extensive reach and organization are what categorize the Inca Empire as the largest among the listed civilizations.