The answer is a strong central government
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.
There was very low economic growth during this time, along with an unsettle financial system and mild deflation. This was all due to the Great Depression and the First World War.
<span>swift rivers provided power for machines</span>
- called the n-word
- not being seen as worthy enough to be in the war and only being used a workers
- being payed lower than their white counterparts
- not being able to fight alongside white men but segregated
