So, what is it about revisionist history? Historical characters acting very un-historical tickles my funny bone. History seems so serious when you learn about it. To imagine historical figures acting kinda like your slacker cousin (you know, the one who huffs Elmer's) flips it around - gives you that sudden realization that is humor, I guess.
Also, it's a comic about history, so you can feel superior to people who don't get it. Philistines!
http://harkavagrant.com/