response: I don't know about China specifically, but he conquered most of Eurasia.
original_response: Of course, to become the greatest in the region  he launched the Mongol invasions that conquered most of Eurasia.
history: I love history, I wish I knew more about Genghis Khan, he seems very interesting. I know a few facts about him. He was the founder of the Mongol Empire, and did you know that after his death it became history's largest contiguous empire? No! How did he start his empire? He united several of the nomadic tribes in Northeast Asia. Did he ever attacked China ?
knowledge: After founding the Empire and being proclaimed ''Genghis Khan'', he launched the Mongol invasions that conquered most of Eurasia.