Lancashire emerged as a major commercial and industrial region during the Industrial Revolution.
Liverpool and Manchester grew into its largest cities, dominating global trade and the birth of modern capitalism.
Today the county borders Cumbria to the north, Greater Manchester and Merseyside to the south and North and West Yorkshire to the east; with a coastline on the Irish Sea to the west.
The county has a population of 1,449,300 and an area of 1,189 square miles (3,080 km). The history of Lancashire begins with its founding in the 12th century.
In the Domesday Book of 1086, some of its lands were treated as part of Yorkshire.
archaically the County Palatine of Lancaster; abbreviated Lancs.) is a non-metropolitan ceremonial county in north west England.
The county town is Lancaster although the county's administrative centre is Preston.
The county was subject to significant boundary reform in 1974 The detached northern part of Lancashire in the Lake District, including the Furness Peninsula and Cartmel, was merged with Cumberland and Westmorland to form Cumbria.
The land that lay between the Ribble and Mersey, Inter Ripam et Mersam was included in the returns for Cheshire.When its boundaries were established, it bordered Cumberland, Westmorland, Yorkshire and Cheshire.