I knew about that.
That was the topic of one of the few documentaries on Mongols I've seen. Something to do with the Amazons/what may have been the basis of the Greeks' stories about the Amazons moving to Mongolia... I'm not sure if that makes a lick of sense...
Ever since I learned that the Amazons from Greek stories were not in fact from the Amazon Rainforest as a small child, I felt intensely annoyed. xD