Lancashire is a non-metropolitan county of historic origin in the North West of England. It takes its name from the city of Lancaster, and is sometimes known as the County of Lancaster. Although Lancaster is still considered to be the county town, Lancashire County Council is based in Preston. Lancashire is sometimes referred to by the abbreviation Lancs, as originally used by the Royal Mail. The population of the ceremonial county is 1,449,300. People from the county are known as Lancastrians.The history of Lancashire is thought to have begun with its founding in the 12th century. In the Domesday Book (1086), some of its lands had been treated as part of Yorkshire. The land that lay Inter Ripam et Mersam, "between the Ribble and Mersey", formed part of the returns for Cheshire. Once its initial boundaries were established, it bordered Cumberland, Westmorland, Yorkshire and Cheshire.Cheshire is a ceremonial county in North West England, in the United Kingdom. The western edge of the county forms part of England's border with Wales. Cheshire's county town is the city of Chester, although the largest town is Warrington, which historically was in Lancashire. Other major towns include Widnes, Congleton, Crewe, Ellesmere Port, Runcorn, Macclesfield, Winsford, Northwich, and Wilmslow. Historically the county contained the Wirral, Stockport, Sale, Altrincham and other towns. The county is bordered by Merseyside and Greater Manchester to the north, Derbyshire to the east, Staffordshire and Shropshire to the south, and Flintshire and Wrexham in Wales to the west. Cheshire is also a part of the Welsh Marches.