April 7, 1863 – Federal ironclads launched a doomed attack on the Confederate forts guarding Charleston Harbor. The Lincoln administration had pressured Rear Admiral Samuel
March 9, 1862 – A naval duel at Hampton Roads off the Virginia coast marked the first time in history that two ironclad warships did
March 8, 1862 – The Confederate ironclad Virginia demolished the Federal naval fleet off Hampton Roads, rendering all wooden warships obsolete and threatening to permanently
January 22, 1862 – Lieutenant John L. Worden reported satisfactory progress on construction of an unnamed vessel slated to become the first Federal ironclad warship.