* Not only did Genghis Khan rape his way across Asia during his conquest, but he and his Khan descendants also had enormous numbers of concubines. These practices suggested that his genes should be overrepresented in Mongolia and the surrounding areas. Geneticists eventually found an unusual gene on the Y chromosome that was common in the area of Mongolian conquest but rare elsewhere, and that could be traced back to approximately one thousand years ago. In combination with the historical record, these data suggest that this gene proliferated from Genghis himself (who lived eight hundred years ago).