Quechua is the most widely spoken of all the indigenous American languages, with an estimated 8 to 10 million native speakers around the world.
While we know very little about the origins of the language, it is known that the ancient Incas adopted Quechua and spread it throughout their kingdom.
Even though it’s often referred to as a single language, there are actually 3 major dialects: Ecuador Quechua (Ecuador and Peru), Central Quechua (northern Peru) and Southern Quechua (Peru, Bolivia and Argentina).
Quechua words like ‘llama’ and ‘condor’ have made their way into the English language.
SOURCE: www . mapsofworld . com/infographics/languages/infographic-of-quechua . html