1931 Event Ironclad cruiser Germany launched in Kiel 1863 Event Federal ironclad ships bomb Fort McAllister Georgia 1862 Event Union ironclad ship "Monitor" sank off Cape Hatteras, NC 1862 Event Confederate Army ironclad "Arkansas" is badly damaged in Union attack 1862 Event Confederate ironclad "Merrimack" launched 1862 Event U.S. Navy's 1st ironclad warship, the Monitor, launched 1861 Event Confederate ironclad Manassas attack Union's Richmond on Mississippi
