With the development of the rail network in the 19th century, Roskilde became an important hub for traffic with Copenhagen, and by the end of the century, there were tobacco factories, iron foundries and machine shops. Among the largest private sector employers today are the IT firm BEC (Bankernes EDB Central) and seed company DLF. The Risø research facility is also becoming a major employer, extending interest in sustainable energy to the clean technology sphere. The local university, founded in 1972, the historic Cathedral School, and the Danish Meat Trade College, established in 1964, are educational institutions of note. Roskilde has a large local hospital which has been expanded and modernized since it was opened in 1855. It is now increasingly active in the research sphere. The Sankt Hans psychiatric hospital serves the Capital Region with specialized facilities for forensic psychiatry.