Creator of ironclad
John Ericcson was born July 31, 1803 and died Mach 8, 1889. He first worked as the supervisor for a mine in Varmland. His only formal education was a basic officers education and training.
The Iron Clad
An ironclad is a steam-propelled warship protected by iron or steel armor plates used in the early part of the second half of the 19th century. The ironclad was developed as a result of the vulnerability of wooden warships to explosive or incendiary shells. The first ironclad battleship, Gloire, was launched by the French Navy in November 1859