Before the civil war the north economy was based on agriculture. It was later based on the industrial revolution after the war.
In the period lading up to the US Cvil War, the North had an emerging industrial economy. The South remained a plantation based agricultural economy with much less industrial capability than the North.
The north had an economy based on Manufacturing this made northerners oppose slavery because slaves could have taken their jobs
Agriculture, especially cotton for sale the the British textile industry.
Washington d.c.
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Prior to the US Civil War, the Southern economy was primarily based on its cotton crop. This was a major plus for the entire US economy in 1860 for example. Cotton was shipped to Europe and also to Northern textile mills.
As the US Civil War unfolded, the economy of the Confederate states was based on agriculture. The main crops they farmed were cotton, tobacco and rice.
The first ironclad of the North was the USS Monitor. Afterwards it built many ironclad ships, many based on the design of the Monitor.
The economy was based on the practice of slave-labour.
Before Bull Run, most assumed that the war would be short and easy.
Gave it a major boost, since Northern factories were able to manufacture all kinds of war supplies, and the farms could sell all the food they grew.
Mary-Joe-anna or Jo-mama