To quote Kenny Powers, "Before you say anything, prepare to shut the f**k up!" Yes, this is a Confederate object. Who cares? Let's not make this political. I'm sure that like myself, most others on here can appreciate the engineering behind this submarine and the fact that its a really cool model.
So, this is the C.S.S. Hunley, though it played a small part in the war itself, it was the first combat submarine to ever sink an enemy vessel, and it paved the way for all submarine warfare that would come in the future by demonstrating that it was a technology worth advancing. It has quite an interesting history, and is well worth the read.
You can learn some about it here :
https://en.wikipedia.org/wiki/H._L._Hunley_(submarine)
As far as the model itself, I did not design it. I did however convert it into a 3D model, then into a printable STL, then add a few details, scale it, and repair it. All because I want to build it, and now YOU can too! The only thing I would have liked to add to it would have been a stand, hopefully someone better at this stuff than me will do just that!