If you're curious why there's no mention of white walkers, krakens, forest children, or a single reference to Westeros in your history books, that's because it's fiction. Nobody tell Snoop Dogg, though, cuz he thinks it's real. 

Snoop believes or at least wants to believe that the Lannister clan really rule and that it's not some silly HBO TV show based on a fictional book series. Snoop was recently asked why he watched GOT and offered up this perfect quote. 

"I watch it for historic reasons, to try to understand what this world was based on before I got here.

 I like to know how we got from there, to here, and the similarities between then and now."

This is what happens when you smoke too much indo and get HBO confused with the History Channel. 

Here are a few other things Snoop may or may not believe are factual...

vampires, Swamp Thing, the boogie man, sharktopus, the Terminator, Care Bears, David Blane's magic, gremlins, Star Wars,  Voldemort, the Toxic Avenger, owls, the great pumpkin, goombas, Predator, Godzilla, Onion articles, those giant worms from Tremors, bloody mary's ghost, unicorns, Space Jam, fire swamps, hobbits, the Back to the Future trilogy

So just to clarify...