well since the Spanish conquered them in the 15 century i would guess about the 15th century late 14th at the most
1325-1521
Around 1572, which is around the downfall of their civilization. Also try Wikipedia.
The Inca civilization existed after the Aztec civilization. The Aztecs rose to prominence in the early 14th century, reaching their height in the early 16th century, while the Inca Empire began to expand significantly in the early 15th century and reached its peak around the same time as the Aztecs, shortly before the Spanish conquest in the 1530s. Thus, both civilizations coexisted for a brief period, with the Aztecs being established earlier.
The Inca's lived from 1200 AD to late 1500 AD
The word "Inca" originally referred to the Sapa Inca, the emperor and leader of the Inca Empire, which was a vast civilization in South America. Over time, the term has come to be used to describe the entire culture, society, and people of the Inca civilization, which thrived in the Andes Mountains from the early 15th century until the Spanish conquest in the 16th century. Therefore, calling all of them "Inca" reflects their shared cultural identity and heritage under the rule of the Sapa Inca.
1325-1521
Around 1572, which is around the downfall of their civilization. Also try Wikipedia.
The Inca civilization existed after the Aztec civilization. The Aztecs rose to prominence in the early 14th century, reaching their height in the early 16th century, while the Inca Empire began to expand significantly in the early 15th century and reached its peak around the same time as the Aztecs, shortly before the Spanish conquest in the 1530s. Thus, both civilizations coexisted for a brief period, with the Aztecs being established earlier.
1200 CE
The INCA civilization was already extinct by the time of WW2.
1450-?
In Mexico, the Aztec; in Peru, the Inca
The Inca's lived from 1200 AD to late 1500 AD
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Spain conquered the Inca and Aztec Empires. By the time of European arrival, the Mayan civilization had imploded four centuries prior.
Late Horizon
1550 to 300 BCE.