What rebel leader became emperor after the mongols were driven out of china

Why was hawaii so important to the united states & why did japan bomb pearl harbor?

Define the word imperialism. what is your opinion: should the u.s. engage in imperialism? under what circumstances? offer a brief, effective argument against the opinion that you hold.

Due to serious dogmatic differences between the orthodox church and the western christan churches, the orthodox church is not in communion with the roman catholic and protestant communities true or false