What three factors created the immense industrial boom after the civil war?

The Civil War in the United States is, without doubt, one of the main events that have impacted the historical formation of that nation. It constitutes the direct antecedent of the advent of imperialism in the late nineteenth century, breaking one of the obstacles that had the deepening of capitalist relations of production in American society. The victory of the Northern States in 1865 led to the Southern states ceasing to be only producers of raw materials. The reconstruction of the South, the abolition of slavery that recognized blacks all civil rights