They actually don't know for sure what led to the decline but a lot of people believe that the Aryans invaded and conquered the Indus Civilization which would make sense because they were the next people group to live there. I hope this helps!
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Rewards: laws that favored the nobles, for example those strengthening serfdom. Punishments: stipulating that they change their customs; requiring them to serve the state.
Explanation:
Answer:
Periodization Should be your answer my freind.
The process of classifying the past into distinct periods of time is exactly Periodization.
Were both assassinated and were leaders that were called ambitious