User blog comment:Fegaxeyl/Christian Mongols/@comment-1589986-20111006011843/@comment-1589986-20111006052714

He never said the Mongols had to be Catholic before they began conquering Asia. For all we know, it could have been a Catholic extremist coming to power because of the Cold War (although that wouldn't be fun). None of them are impossible per se, but how far back the POD needs to go is the question. For #3, the POD would have to go back to at least the 1st millenium.