Birkenhead is a port city in the county of Merseyside in northwest England. It lies on the left bank of the River Mersey opposite Liverpool, in the Wirral and counts 93,087 inhabitants (2001). Until 1974 Birkenhead belonged to the county of Cheshire, since it is part of the Metropolitan Borough Wirral. Already in 1150 the first ferry from Birkenhead across the Mersey from driving. At the same time built a monastery Benedictine monks; The building is the oldest of Birkenhead. To date, Birkenhead is an important port and site of several businesses of shipbuilding. The shipyard today operating under the name Cammell Laird goes back to the 1824 founded Birkenhead Iron Works.