How did mongol rule affect cultural development in the lands under their control?

How did Mongol rule affect cultural development in the lands under their control? The Mongol ruled a massive empire from the Middle East to China to Russia to India. They provided protections along major trade routes and promoted trade. Also, some Mongol rulers converted to Islam spreading that religion even Further.

Explanation:

a.) d-day invasion of normandy.

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the decreasing neutrality of the u. s. in world war i

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