The Mongols claimed the largest consolidated land empire in history. Seemingly the only way to keep them out was to put the Himalayas between you and them. And many historians believe their power stemmed from an incredibly simple technological innovation: the stirrup.
Answer: According to the semi-legendary early history of the Incas, Pachacuti rose to prominence when their war-like neighbours, the Chanca, attacked Cuzco in the early 15th century CE. The Inca ruler at the time, Viracocha Inca, and his son Inca Urco proved ineffectual in meeting this threat and fled the city.
Explanation:
So they can get away from slavery and or segregation it depends on what you're learning
