These acquitted themselves well against early ironclad warships. It saw the first action involving steam-powered ironclad warships in naval warfare history. Many naval innovations emerged during this time, most notably the advent of the ironclad warship. These ships are sometimes covered in treatments of the ironclad warship. Wrought "iron" was used on ironclad warships. The pre-dreadnought developed from the ironclad battleship. These high-velocity weapons became increasingly important with the advent of ironclad warships. The start of the 1880s saw the end of sailing rig on ironclad battleships. In January 1881 Fisher received news of his appointment to the new ironclad battleship . He returned to Naval service in 1862 as captain of , another "Monitor"-type ironclad. The ironclad was ship rigged and had a sail area of . Pre-dreadnoughts continued the technical innovations of the ironclad. Broadside armament also had disadvantages, which became more serious as ironclad technology developed. The Battle of Vicksburg involved monitors and ironclad riverboats. British ships did not participate in any major wars in the ironclad period.