ex-Pennsy "Long Bridge" across the Potomac River, and (4) the Terre Haute, Indiana-to-East St. Louis, Illinois segment of the St. Louis main line (the segment east of Terre Haute is former-New York Central). The Pennsylvania Railroad still exists, but has since switched to an insurance company and now goes by the name American Premier Underwriters and currently serves as a subsidiary of American Financial Group. Timeline 1846: The Pennsylvania Railroad Company is chartered to construct a rail line from Harrisburg to Pittsburgh, Pennsylvania. 1850s: Renamed as the Pennsylvania Central Railway. 1850: Construction begins on Altoona Works repair shop at Altoona, Pennsylvania. 1857: The Main Line of Public Works of Pennsylvania purchased. 1865: First US railroad to use steel rails. 1868: The Pittsburgh, Cincinnati and St. Louis Railway is formed and controlled by the Pennsy. 1869: Leases the Pittsburgh, Fort Wayne and Chicago Railway, formally giving it control of a direct route into the heart of the Midwestern United States and Chicago, Illinois. 1870: "Pennsylvania Central" is split into lines east (renamed Pennsylvania Railroad) and lines west Pennsylvania Company is formed to hold securities from companies West of Pittsburgh; Use of track pans begins on PRR at Sang Hollow, Pennsylvania; Pennsy reaches Cincinnati, Ohio, with lease of Little Miami and St. Louis, Missouri, with control of the St. Louis, Vandalia & Terre Haute. 1871: Pennsylvania Railroad reaches Jersey City, New Jersey, and the New York City area via lease of the United New Jersey Railroad and Canal Company. 1872: Air-brakes first used on the Pennsylvania Railroad. 1873: Pennsy reaches Washington, D.C., via the Baltimore & Potomac Railroad. 1877: Thomas A. Watson demonstrates telephone to PRR officials at Altoona; Pittsburgh Riots destroys property of Pennsylvania Railroad at Pittsburgh, Pennsylvania. 1881: Pennsy purchases control of Philadelphia, Wilmington, and Baltimore Railroad thereby providing a direct route between Philadelphia, Baltimore, and Washington, D.C., access to Delmarva Peninsula; Broad Street Station opens. 1885: The Congressional Limited Express from New York to Washington is introduced. 1887: Pennsylvania Limited service begins between New York and Chicago; first vestibuled train. 1900: The Pennsy gains access to Buffalo, New York, via lease of Western New York & Pennsylvania. 1902: Pennsylvania Special service begins between New York and Chicago replacing the Pennsylvania Limited. 1906: An accident in Atlantic City kills 53 people. 1907: Union Station in Washington, D.C., completed. 1910: Completion of the North River Tunnels under the Hudson River, providing