Hey Buddy! I know this!
It was the Mongols who defeated the Pagan Kingdom.
Feel free to ask me more questions on my profile. :)
Because The Maurya Empire in India used a combination of political sabotage, religious conversion, and military conquest to expand its rule. The Romans, although a militaristic society, did not generally set out to conquer territory. But, they did get involved in many wars.
I hope that helps.
This is probably late but here,
It encouraged the ideals of liberty and equalities.
Hope this helped or helps! :D