B. Assimilation and the tolerance of conquered peoples will always result in the betterment of an Empire. Take the Romans, for example.
The Mongol Empire had a devastating affect on Persia or modern day Iran. Today, Genghis Khan, the leader of the Mongol horde, is known as a genocidal warlord which killed millions of people there. A similar thing happened when the Mongols first invaded Russia as they slaughtered entire cities during their invasions; an example being the city of Kiev.
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Tungsten has the symbol W and atomic number 74.
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What did Sam Houston think was the best way to deal with the Texas Indians? "treaties of peace and amity (friendship)..(with the Native Americans)". He advocated peace between Indians and Texans