Final answer:
The growth of the Incan Empire was marked by conquests and expansions under the reign of Pachacuti and his successors.
Step-by-step explanation:
The growth of the Incan Empire was marked by a series of conquests and expansions during the reign of Pachacuti and his successors. Starting around 1430, the empire extended its territory throughout modern-day Peru, and later expanded into Chile, Argentina, Ecuador, and Colombia. These conquests were costly and relied on the military skills of the Inca army.
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