I read a Free Comic Book Day version of that, it was well done. I know of Classics Illustrated but they are usually adaptations of classic stories. I know Marvel Comics did a classics line, actually two. One was an adaptation written by Roy Thomas of the Dorian Gray story and another comics series that attempted the same as Classics. A guy on Amazon made an interesting list too: http://www.amazon.com/Historical-Graphic-Novels/lm/R1XZF2TFVGIMXZ I bet if you look at the publisher's website of the Gettysburg story that you'll see more of that type of graphic novel. Looks very interesting.