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The Mongols had a great impact on the post-classical world. Gunpowder was developed in China during the post-classical era. The Mongol Empire connected Europe and Asia, creating safe trade and stability between the two regions. In total the population of the world doubled in the time period from approximately 210 million in 500 AD to 461 million in 1500 AD. The Mongol empire spared teachers of taxation and led to the great spread of printing all over East Asia. They also helped the rise of an educated class in Korea.

Explanation:

i don't see how you want other people to do your work for you and it is like you are just handing your assignment to anybody else and having them deal with it instead of your self i thought this site was for asking questions and somebody could you on it not just handing your work to somebody else to deal with it just saying don't mean to be mean just proving a fact.

explanation:

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.