What happened to the eastern European cities when the mongols invaded?

Who invented the chamber pot? What was the significance of the development of steam power to industrialization? What is the meaning of horrid? What does the name Cyrus mean? Who were the 16th and 17th century English protestants? What is the past of will? What did cooks do in the middles ages? What is a name that starts with C? What country borders India to the west? What role did cultural diffusion play in the Renaissance? What is cimitition? How Many Americans believed the West was vast open land In fact the land was populated with? What type of Romans could serve in a government? What bad did the Romans do to people in Britain? Approximate years when FEUDALISM began and ended in Germany? What was the manciple role in society in the middle ages? How did windmills impact peoples' lives in the west? How do factors such as war trade migration and invention affect cultural change? Why has culture changed more rapidly in the modern times than in the past? Did the barbarians cause the fall of rome?