What is the monitor and the Merrimack?

The Monitor and the Merrimack, also known as the CSS Virginia, were ironclad warships that fought in the historic Battle of Hampton Roads during the American Civil War in March 1862. The Monitor, designed by the Swedish engineer John Ericsson, was notable for its rotating turret, while the Merrimack was constructed from the salvaged hull of a scuttled wooden ship and heavily armored. This battle marked the first clash between ironclad warships, revolutionizing naval warfare and signaling the decline of wooden ships in combat. The encounter ended in a stalemate but had significant implications for future naval engagements.