Why would the US Civil War have contributed to the industrial development of the US?
When the US Civil War began, it was clear that the North's industrial base would be needed to convert itself to war industrialization. The Federal government required supplies such as military uniforms, shoes, wagons, new railroad cars and engines. Ship building was switched to build warships and more cargo vessels. Munitions had to also be increased to supply the Union army. More artillery was also required. Lucrative federal contracts turned the peace time industrialization into a wartime industrialization.
Because the war required a lot of equipment for example, weapons, clothing, ships, medical supplies, and a lot more, This led to more new factories because the war had to have the supplies being made right there because when they needed stuff they couldn't wait for it to be shipped over to them.