Nobody knows. Estimates for the population of the Inca empire at its peak range from three million (Kroeber 1939) to 39 million (Cook 1965). Neither extreme is convincing: something around 10m might be considered a plausible compromise, though no consensus exists. By 1650 fewer than two million indigenous inhabitants remained.
I belive that small pox reduced the incas population but the again im just a fifth grader. so you can take this answer or not
they killed the kids
Most of the Incas who were not killed by the Spanish in combat probably died from European diseases. But the Incas probably did not die out entirely; rather, the survivors of the Spanish invasion simply assimilated into the rest of the population.
Europe(The Spanish) began to systematically wipe out the indigenous population as they moved west such as the Incas ,Aztecs and the Mayans.
incas interact with other incas and animals posted by Cody incas interact with other incas and animals posted by Cody incas interact with other incas and animals posted by Cody incas interact with other incas and animals posted by Cody
The Incas were clothes
The Incas were tricked by the Conqestadors to find the sacred jewels and gold of the untouched land. Once found, they were made slaves and when there were rebellions the Conquistador's massacred the indigenous Inca population.
what problems DID INCAS have
The Incas created temples.
The Incas were conquered in 1532.
The Incas mountain
The Incas dressed in colorful and finely woven garments made from materials such as cotton, wool, and alpaca. They wore tunics, cloaks, and headpieces decorated with intricate designs and symbols that reflected their social status and identity within the society. The clothing often featured bright colors like red, yellow, and blue, and were sometimes adorned with gold and silver ornaments.