The Southern Railway (reporting mark SOU) (also known as Southern Railway Company and now known as the Norfolk Southern Railway) was a class 1 railroad based in the Southern United States between 1894 and 1982, when it merged with the Norfolk & Western to form Norfolk Southern. The railroad was the product of nearly 150 predecessor lines that were combined, reorganized and recombined beginning in the 1830s, formally becoming the Southern Railway in 1894.