It continues to irritate me that when they built a bridge tunnel across the James River here in Hampton Roads, the State of Virginia named it the "Monitor-Merrimac Memorial Bridge Tunnel", ignoring the fact that at the time of the battle, the ship was no longer the USS Merrimac, but the CSS Virginia.
The battle between the two ironclads, The Merrimack and The Monitor, showed that North and South were at an impasse, regarding the strength of each side.