Pizarro (a Spanish conquistador) conquered them. (Sort of brief but it's basically how they died out)
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.
The Incas that were not outright killed by European guns died later from the European diseases, like smallpox and measles. Unlike the Europeans, the Incas had no resistance to those diseases, at all. Some Incas escaped, for sure, but they never regained their empire.
The Spain Colonist came and they had disease . Soon they were around the Incas a lot and they soon had the disease they couldn't cure it so they died out
they died cause they shot each other
14,000,001.5
Peru, they are an ancient civilization characterised by their sophistication. Incas as in the ancient civilization of Macchu picchu. The civilization died out, but their legacy remains - visit a site for more info.
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The Incas were clothes
The leader of the conquering of the Incas was Francisco Pizarro. He fought against the Inca leader Huayna Capac who soon died of small pocks.
The Incas declined because the Spanish that invaded their land killed them and used them as slaves, also because since the Incas were not immune to the Spanish diseases they brought, most of them died.
what problems DID INCAS have
small pox im pretty sure. It was what lead to the Incas eventually defeat because they had no medicines and all the people who came in contact with small pox got it as well and died.