The Michigan Central railroad was created primarily by Boston capitalists for the purpose of purchasing the "Central" line from the State of Michigan. See "Central" line. In the late 1830's, the state had invested in several public works projects consisting of new railroads and canals. The "central" project was one of these. Though more successful than the other public works projects, the state decided to exit these projects and this line, radiating west from Detroit was sold to the Michigan Central.
The Michigan Central was a profitable and successful railroad over the years, known for many innovations. It became controlled by Vanderbilt interests ( NYC&HR) and in 1916 was merged into the New York Central System. But it continued to be called the " Michigan Central" by many, and in fact the great Michigan Central passenger station in Detroit is still known by that name.