Quechua is the only Inca language that has been preserved to this day.
The Quechua language did not always have the position of official language of the Inca Empire; but, during the reign of one of the emperors, Quechua was elevated to the position of official language. The Quechua language was expanded across the Inca Empire as a result of the Incas’ policy of requiring all of the peoples they subjugated to speak Quechua.
The variety of languages spoken inside the empire was extraordinary. The regions of the Central Andes, the Altiplano, the south Peruvian coast, and the area of the north Peruvian coast (Chinchaysuyu) surrounding Chan Chan, today’s Trujillo were the primary areas where the languages Quechua, Aymara, Puquina, and Mochica were spoken.
Etymology. Although they probably only numbered between 15,000 and 40,000 in total, the Incas ruled over a population of over 10 million people. This is a relatively small fraction of the entire population of the Inca Empire. The Spanish used the phrase as an ethnic term referring to all subjects of the empire rather than just the ruling elite. The term is transliterated as Inca in Spanish.
The quipus, pottery, textiles, and numerous dialects of Quechua were the primary means of communication and record-keeping throughout the Inca Empire. Quechua was the language that the Incas forced onto the peoples that lived inside their empire.