In the Early Middle Ages, Cumbria was part of the Kingdom of Strathclyde in the Hen Ogledd, or "Old North", and its people spoke a Brittonic language now called Cumbric.[1][2] At the time of the Domesday Book (AD 1086) most of the future county was part of Scotland, although some villages around Millom, which were the possessions of the Earl of Northumbria, had been incorporated into Yorkshire.Henry II formed two new counties from the former earldom: Westmorland and Carliol – originally an abbreviation of the Latin Carlioliensis '[bishop] of Carlisle'.The northern boundary is formed by the Solway Estuary and the border with Scotland running east to Scotch Knowe at Kershope Burn.In common with other northern England counties, many ancient parishes in Cumberland were very large, often consisting of a number of distinct townships and hamlets.During the 19th century a series of reforms reshaped the local government of the county, creating a system of districts with directly elected councils.Cumberland was divided into nine unions: Alston with Garrigill, Bootle, Brampton, Carlisle, Cockermouth, Longtown, Penrith, Whitehaven and Wigton.Eleven local boards were initially formed at Brampton, Cleator Moor, Cockermouth, Egremont, Holme Cultram, Keswick, Maryport, Millom, Penrith, Whitehaven, Wigton and Workington.In 1914, Carlisle successfully applied for this status, ceasing to form part of the administrative county, although remaining within Cumberland for the purposes such as Lieutenancy and shrievalty.In 2013, the Secretary of State for Communities and Local Government, Eric Pickles, formally recognised and acknowledged the continued existence of England's 39 historic counties, including Cumberland.[10][11][12] In 2021, it was announced that on 1 April 2023 local government in Cumbria would be reorganised into two unitary authorities, one of which is Cumberland and includes most of the historic county, with the exception of Penrith and the surrounding area.
Map of Cumberland showing wards, 1824
Map of Cumberland in 1845 showing poor law unions and parliamentary divisions