[ohioman]

When it comes to historical bad asses no one tops Genghis Khan. We of European descent should thank God that one of Genghis’ sons drank himself to death. Without this divine intervention, Europe would have been toast. It would have been a horse-driven Blitzkrieg of death and destruction.

[Cronos]

I kind of doubt that. Genghis Khan's cavalry was useless in the forested and mountainous areas of western and southern Europe. And also the extreme north (Novgorod) stood out against his horde.

I just wish Hulagu Khan had effectively wiped out Islam (he destroyed Baghdad and the CAliph and could have easily leveled Mecca and Medina)