08/10/2026
157 Union cannons fired at the CSS Tennessee… yet not a single shell pierced its hull. ⚓💥
The Confederate ironclad was built like a floating fortress, protected by thick iron armor and heavy wooden backing.
But even an “unsinkable” warship had a weakness.
During the Battle of Mobile Bay in 1864, a Union shell damaged the mechanism of one of its armored gun-port shutters, leaving it jammed open. That tiny opening gave the Union fleet the chance it needed to finally disable the mighty ironclad.
The Tennessee wasn’t defeated by punching through its armor—it was defeated by exploiting a design flaw.
Would you call this one of the toughest warships of the Civil War?