You will have to look long and hard to find a book that has no bias. That would be like reporters who have no bias. Could you report a war and not care which side wins?
Well, before I go off the deep end, let me ask a question about Gatling guns, since the subject has popped up and I will assume that readers who have an interest (unbiased or not) will read this thread.
Sometimes Gatling guns show up in movies. The War Wagon, which was a Keenan Wynn movie, is the only example I can think of right now. My question is, are those Gatling guns we see in the movies original?
Shoot low, sheriff. They're riding Shetlands!
Underneath the starry flag, civilize 'em with a Krag,
and return us to our own beloved homes!
Buy War Bonds.