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The Industrial Revolution of the Second Half of the 20th Century
The explosion of railroad networks after the Civil War revolutionized connection between America's hinterland and its metropolitan markets. By 1877, some 16 miles worth of railroad freight cars laid in with Midwestern hogs and lumber were pouring into New York Central Station via Chicago shipping every single day. As railroads obliterated distance and deviations in time, the network of telegraph cables erected along their lines obliterated obstacles to flow of information too.