Opened on 23 December 1865. Known as Aldersgate Street until 1910, Aldersgate 1910-23, Aldersgate & Barbican 1923-68. There were also National Rail services (one of the lines out of Moorgate Station which closed in 2009 – the platforms remain however. There is street level and high level access (known as the London Pedway, partly built in the 60s) to the Barbican Centre and the Museum of London.
There is no Step-Free Access available at the station.
There are no toilets available at the station.
Farringdon Station Crossrail eastern ticket hall will be just west of the station where interchange will be provided with Step-Free Access.
London Buses Routes 4, 56, 153 serve the station.
TfL page 
Some photographs and information here [http://www.urban75.org/blog/the-disused-thameslink-platforms-at-barbican-station-london/