10. evaluate the impact of the mongols, including genghis khan, invasions of russia,
china and the islamic world, centralized power, religious tolerance, interregional
trade, and reasons for decline.

after the roman empire fell, some of its cultural achievements lasted for some time and others were lost. lost achievements include architecture , coins, and literacy. however, several things remained, such as the language. people may not have spoken this language in every city, but it influenced the languages they did speak. they also created the julian , which was commonly used until the eighteenth century.

a mogul empire was disbanded

yellow fever and other tropical diseases