The discoveries in the Olduvai Gorge in East Africa have suggested that the early humans were using primitive types of tools. This tools were made mainly from stone and bones, and they had multiple uses in their daily lives. Most of the tools found are sharpened stones and pointy parts of bones, mostly used for cutting flesh and piercing.
The answer is John Pierpont Morgan.
J P Morgan dominated corporate finance and industrial consolidation during his time, with business in infrastructure, steel and real estate. He created a huge conglomerate and he is considered the largest banker in US history, being sought by the Americando Government to assist in resolving a crisis in 1895.
The majority of immigrants to America before 1870 were of western European descent, such as the Irish and French, although there were immigrants from all over the world as well.
The battle you are referring to is actually called the Battle of the Ironclads. In this battle, it was the Merrimac (from the Confederacy) versus the USS Monitor (from the Union). This was the first battle between iron-fortified vessels in the Civil War. This battle ended up in a draw but represented a new form of fighting that both the Union and Confederacy had to be ready for.