RailroadsThe Civil War is the first war in which railroads were a major factor. The 1850s had seen enormous growth in the railroad industry so that by 1861, 22,000 miles of track had been laid in the Northern states and 9,500 miles in the South. The great rail centers in the South were Chattanooga, Atlanta, and most important, Richmond. Very little track had yet been laid west of the Mississippi.
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More important than these advanced weapons were larger-scale technological innovations such as the railroad. Once again, the Union had the advantage. When the war began, there were 22,000 miles of railroad track in the North and just 9,000 in the South, and the North had almost all of the nation’s track and locomotive factories. Furthermore, Northern tracks tended to be “standard gauge,” which meant that any train car could ride on any track. Southern tracks, by contrast, were not standardized, so people and goods frequently had to switch cars as they traveled–an expensive and inefficient system.
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