Historic counties of England
The historic counties of England are areas that were established for administration by the Normans, in many cases based on earlier kingdoms and shires created by the Anglo-Saxons and others. They are alternatively known as ancient counties, traditional counties, former counties or simply as counties. In the centuries that followed their establishment, as well as their administrative function, the counties also helped define local culture and identity. This role continued even after the counties ceased to be used for administration after the creation of administrative counties in 1889, which were themselves amended by further local government reforms in the years following.
Unlike the partly self-governing boroughs that covered urban areas, the counties of medieval England existed primarily as a means of enforcing central government power, enabling monarchs to exercise control over local areas through their chosen representatives – originally sheriffs and later the Lord-Lieutenants – and their subordinate justices of the peace. Counties were used initially for the administration of justice, collection of taxes and organisation of the military, and later for local government and electing parliamentary representation. They continue to form the basis of modern local government areas in many parts of the country away from the main urban areas, although the newly created areas sometimes have considerably altered boundaries from the historic counties on which they are based.
Nomenclature
The name of a county often gives a clue to how it was formed, either as a division that took its name from a centre of administration, an ancient kingdom, or an area occupied by an ethnic group. The majority of English counties are in the first category, with the name formed by combining the central town with the suffix "-shire", for example Yorkshire. Former kingdoms, which became earldoms in the united England did not feature this formulation; so for Kent, the former kingdom of the Jutes, "Kentshire" was not used. Counties ending in the suffix "-sex", the former Saxon kingdoms, are also in this category. Some of these names include compass directions. The third category includes counties such as Cornwall and Devon where the name corresponds to the tribes who inhabited the area. County Durham is anomalous in terms of naming and origin, not falling into any of the three categories. Instead, it was a diocese that was turned into the County Palatine of Durham, ruled by the Bishop of Durham. The expected form would otherwise be "Durhamshire", but it was rarely used.There are customary abbreviations for many of the counties. In most cases, these consist of simple truncation, usually with an "s" at the end signifying "shire", such as "Berks" for Berkshire or "Bucks" for Buckinghamshire. Some abbreviations are not obvious, such as "Salop" for Shropshire, from the Norman-derived word for its county town Shrewsbury; "Oxon" for Oxfordshire, from Latin Oxonium ; "Hants" for Hampshire; and "Northants" for Northamptonshire. Counties can be prefixed with "County of" in official contexts with any "-shire" suffix dropped, such as "County of Kent" or "County of York". There is similar usage in the two cases where a county with a "-shire" suffix was not named after a town, where the correct formation is the "County of Berks" and "County of Wilts". The "-shire" suffix was also appended for some counties, such as "Devonshire", "Dorsetshire" and "Somersetshire", despite their origin. For instance, there has been an Earl of Devonshire since 1603, and Duke of Devonshire since 1694.
History
Origins
was first divided into administrative areas by the Romans, most likely following major geographical features such as rivers. Before their arrival there were distinct tribal areas, but they were in a constant state of flux as territory was gained and lost. After the demise of Roman Britain around 410 these first divisions of land were generally abandoned, although traditional divisions taking the form of petty kingdoms such as Powys, Dumnonia and Elmet, remained in those areas which remained British, such as south west England. The areas that would later form the English counties started to take shape soon afterwards, with the Kingdom of Kent founded by settlers around 445. In southern England more widely, shires emerged from earlier sub-kingdoms as part of the administrative structure of Wessex, which then imposed its system of shires, boroughs and ealdormen on Mercia after it came under West Saxon control during the 10th century. Once the Kingdom of England was united as a whole in 927 it became necessary to subdivide it for administrative convenience and to this end, earldoms were created out of the earlier kingdoms. The whole kingdom was divided into shires by the time of the Norman conquest. Robert of Gloucester accounts for thirty-five shires and William of Malmesbury thirty-two, Henry of Huntingdon, thirty-seven. In most cases the counties or shires in medieval times were administered by a sheriff on behalf of the monarch. After the Norman conquest the sheriff was replaced and the shires became counties, or "areas under the control of a count", in the French manner.Although all of England was divided into shires by the time of the Norman conquest, some counties were formed later, such as Lancashire in the 12th century. Perhaps because of their differing origins the counties varied considerably in size. The county boundaries were fairly static until the Local Government Act 1888. Each shire was responsible for gathering taxes for the central government; for local defence; and for justice, through assize courts.
Southern England
In southern England the counties were mostly subdivisions of the Kingdom of Wessex, and in many areas represented annexed, previously independent, kingdoms or other tribal territories. Kent derives from the Kingdom of Kent, and Essex, Sussex and Middlesex come from the East Saxons, South Saxons and Middle Saxons. Norfolk and Suffolk were subdivisions representing the "North Folk" and "South Folk" of the Kingdom of East Anglia. Only one county on the south coast of England now usually takes the suffix "-shire": Hampshire, named after the former town of "Hamwic", the site of which is now a part of the city of Southampton. A "lost" Saxon county was Winchcombeshire which lasted from 1007 to 1017 before being incorporated into Gloucestershire. Dorset and Somerset derive their names from the saete or inhabitants of the areas around the towns of Dorchester and Somerton respectively; the names were first used by the Saxons in the 9th century. Devon and Cornwall were based on the pre-Saxon Celtic tribes known in Latin as the Dumnonii and Cornovii, in the latter case with the suffix wealas, meaning foreigners, added by the Saxons.Midlands
When Wessex annexed Mercia in the 10th century, it subdivided the area into various shires of roughly equal size and tax-raising potential or hidage. These generally took the name of the main town of the county, along with "-shire". Examples are Northamptonshire and Warwickshire. In some cases the original names have been worn down: for example, Cheshire was originally "Chestershire".In the east Midlands, it is thought that county boundaries may represent a 9th-century division of the Danelaw between units of the Danish army. Rutland was an anomalous territory or soke, associated with Nottinghamshire, but it eventually became considered the smallest county. Lincolnshire was the successor to the Kingdom of Lindsey, and took on the territories of Kesteven and Holland when Stamford became the only Danelaw borough to fail to become a county town.
Northern England
Much of Northumbria was also shired, the best known of these counties being Hallamshire and Cravenshire. The Normans did not use these divisions, and so they are not generally regarded as ancient counties. The huge county of Yorkshire was a successor to the Viking Kingdom of York, and at the time of the Domesday Book in 1086 it was considered to include what was to become northern Lancashire, as well as parts of Cumberland, and Westmorland. Most of the later Cumberland and Westmorland were under Scottish rule until 1092. After the Norman Conquest in 1066 and the harrying of the North, much of the North of England was left depopulated and was included in the returns for Cheshire and Yorkshire in the Domesday Book. However, there is some disagreement about the status of some of this land. The area in between the River Ribble and the River Mersey, referred to as "Inter Ripam et Mersam" in the Domesday Book, was included in the returns for Cheshire. Whether this meant that this land was actually part of Cheshire is however not clear. The Northeast land that later became County Durham and Northumberland, was left unrecorded.Cumberland, Westmorland, Lancashire, County Durham and Northumberland were established as counties in the 12th century. Lancashire can be firmly dated to 1182. Part of the domain of the Bishops of Durham, Hexhamshire was split off and was considered an independent county until 1572, when it became part of Northumberland.
Welsh border
At the time of the Domesday Book, some parts of what later became Wales were included in English counties: Monmouth, for example, was included in Herefordshire. Additionally, the Domesday Book included, as part of Cheshire, areas that later became part of Wales, including the two hundreds of Atiscross and Exestan, and the southern part of Duddestan Hundred, which later became known as Maelor Saesneg, and "Flintshire Detached". Parts of the March of Wales, which after the Norman conquest had been administered by Marcher Lords largely independently of the English monarch, were incorporated into the English counties of Shropshire, Herefordshire and Gloucestershire in 1535.There was historic ambiguity as to the status of the county of Monmouthshire. As with other Marcher areas added to existing counties, it was created out of "the said Country or Dominion of Wales" by the Laws in Wales Act 1535. It was then added to the Oxford circuit of the English Assizes. For legal purposes it was regarded as part of England, but Laws since the late 19th century were often applied to "Wales and Monmouthshire". It was listed among the English counties for parliamentary purposes until 1950 and for local government until 1974, but the Local Government Act 1972 unambiguously included the area as part of Wales.
Counties corporate
A charter of Henry I in about 1130 gave the City of London its own Sheriff. The Sheriff of London also had jurisdiction over the county of Middlesex, so that "London and Middlesex were from that time regarded as one from an administrative point of view", although they retained their separate identities. This relationship continued until the Local Government Act 1888 created a new office of High Sheriff of Middlesex appointed in the same manner as other English and Welsh counties, created the County of London with its own high sheriff, and restricted the jurisdiction of the sheriffs of London to the City.During the Middle Ages a number of other large cities and towns were granted the status of self-governing counties separate from adjacent counties. Such a county became known as a county corporate or "county of itself". For most practical purposes this separate status was replaced in the late 19th century when county boroughs were introduced.
Bristol developed as a major port in the medieval period, straddling both sides of the River Avon which formed the ancient boundary between Gloucestershire and Somerset. In 1373 Edward III decreed
Similar arrangements were later applied to Norwich, Southampton, Canterbury, Gloucester, Exeter, and Poole.
Charters were granted constituting the boroughs or cities of Lincoln, Nottingham, Lichfield and Worcester as counties. The County of the City of Coventry was separated from Warwickshire in 1451, and included an extensive area of countryside surrounding the city.
Charters granting separate county status to the cities and boroughs of Chester, York, Newcastle upon Tyne and Kingston-upon-Hull . In 1551 Berwick upon Tweed, on the border with Scotland, was created a county corporate.
Exclaves
The ancient counties have many anomalies, and many small exclaves, where a parcel of land was politically part of one county despite not being physically connected to the rest of the county. The Counties Act 1844 was passed, the effect of which was to treat many of these exclaves as part of the county which surrounded them. This had already been done for Parliamentary purposes under the Great Reform Act 1832.Large exclaves affected by the 1844 Act included the County Durham exclaves of Islandshire, Bedlingtonshire and Norhamshire, which were subsequently treated as hundreds of Northumberland; and those parts of Halesowen forming part of Shropshire, which was subsequently treated as part of Worcestershire, as the remainder already was.
Exclaves that the 1844 Act did not touch included the part of Derbyshire around Donisthorpe, locally in Leicestershire; and most of the larger exclaves of Worcestershire, including the town of Dudley, which remained surrounded by Staffordshire. Additionally, the Furness portion of Lancashire remained separated from the rest of Lancashire by a narrow strip of Westmorland — though it was accessible by way of the Morecambe Bay tidal flats.
1889
When the first county councils were set up in 1889, they covered newly created entities known as administrative counties. Several historic subdivisions with separate county administrations were also created administrative counties, particularly the separate ridings of Yorkshire, the separate parts of Lincolnshire, and the East and West divisions of Sussex. The Local Government Act 1888 also contained wording to create both a new "administrative county" and a "county" of London, and to ensure that the county boroughs which were created at the same time continued for non-administrative purposes to be part of the county which they geographically lay. These counties were to be used "for all purposes, whether sheriff, lieutenant, custos rotulorum, justices, militia, coroner, or other". The effect was that new county boroughs which were counties corporate retained their status as separate counties. In retrospect, these "statutory" counties can be identified as the predecessors of the ceremonial counties of England. The censuses of 1891, 1901 and 1911 provided figures for the "ancient counties".Several towns are historically divided between counties, including Banbury, Burton upon Trent, Newmarket, Peterborough, Royston, Stamford, Tamworth, Todmorden and Warrington. In Newmarket and Tamworth the historic county boundary runs right up the middle of the high street, and in Todmorden, the historically fractious border between Lancashire and Yorkshire had Todmorden Town Hall built right on top of it on a culvert tunnel, dividing the hall down the middle between the two counties - a division reflected in its architecture. The 1888 Act ensured that every urban sanitary district would be considered to be part of a single county. This principle was maintained in the 20th century: when county boroughs such as Birmingham, Manchester, Reading and Sheffield expanded into neighbouring counties, the area added became associated with the county borough's geographic county. However, this principle was not applied to Stockport or Cardiff, which remained divided, the latter even divided between England and Wales.
1965 and 1974
On 1 April 1965 a number of changes came into effect. The new administrative area of Greater London was created, resulting in the abolition of the administrative counties of London and Middlesex, at the same time taking in areas from surrounding counties. On the same date the new counties of Cambridgeshire and Isle of Ely and of Huntingdon and Peterborough were formed by the merger of pairs of administrative counties. The new areas were also adopted for lieutenancy and shrievalty purposes.In 1974 a major local government reform took place under the Local Government Act 1972. The Act abolished administrative counties and county boroughs, and divided England into counties. These were of two types: "metropolitan" and "non-metropolitan" counties. Apart from local government, the new counties were "substituted for counties of any other description" for judicial, shrievalty, lieutenancy and other purposes. Several counties, such as Cumberland, Herefordshire, Rutland, Westmorland and Worcestershire, vanished from the administrative map, while new entities such as Avon, Cleveland, Cumbria and Humberside appeared, in addition to the six new metropolitan counties.
The built-up areas of conurbations tend to cross historic county boundaries freely. Examples are Bournemouth–Poole–Christchurch Greater Manchester, Merseyside, Teesside, South Yorkshire, Tyneside and West Midlands. Greater London itself straddles five ancient counties — Essex, Hertfordshire, Kent, Middlesex, Surrey — and the London urban area sprawls into Buckinghamshire and Berkshire. The Local Government Act 1972 sought generally to unite conurbations within a single county, while retaining the historic county boundaries as far as was practicable.
Postal counties
In a period of financial crisis, the Post Office was able to alter many of its postal counties in accordance with the 1965 and 1974 reforms, but not all. The two major exceptions were Greater London and Greater Manchester. Greater London was not adopted in 1965, since, according to the Post Office at the time, it would have been too expensive to do so, while it gave as its reason for not adopting Greater Manchester the ambiguity of the name with the Manchester post town. Perhaps as a result of this, the ancient counties appear not to have fallen completely out of use for locating places in Greater Manchester, along with areas of Greater London that are not part of the London post town. It is common for people to speak of "Uxbridge, Middlesex", "Dagenham, Essex" or "Bromley, Kent", but much less so to speak of "Brixton, Surrey", "Greenwich, Kent", or "West Ham, Essex".In 1996, following further local government reform and the modernisation of its sorting equipment, the Royal Mail ceased to use counties at all in the direction of mail. Instead it now uses the outward code of the postcode. The former postal counties were removed in 2000 from its Postcode Address File database and included in an "alias file", which is used to cross-reference details that may be added by users but are no longer required, such as former street names or historic, administrative and former postal counties.
During a public consultation in 2009 Postcomm found that many respondents objected to the use of counties in the alias file. In May 2010 Postcomm announced that it was encouraging Royal Mail to discontinue the use of counties in its alias file at the earliest opportunity. However because some existing software included the use of counties, Royal Mail was advised not to implement the change before 2013.
County cricket
The historic counties of England continue to be used as the basis for county cricket teams and the governance of cricket in England through the ECB County Boards. There are exceptions in that Rutland is integrated with Leicestershire; the Isle of Wight has its own board outside the Hampshire one; there is a board for the ceremonial county of Cumbria which is representative of both Cumberland and Westmorland. In addition, the ECB County Boards include one for the country of Wales.Recognition of historic county boundaries
A review of the structure of local government in England by the Local Government Commission for England led to the restoration of the East Riding of Yorkshire, Herefordshire, Rutland and Worcestershire as administrative areas in the 1990s; the abolition of Avon, Cleveland and Humberside within 25 years of their creation; and the restoration of the traditional borders between Somerset and Gloucestershire, County Durham and Yorkshire, and Yorkshire and Lincolnshire for ceremonial purposes in these areas. The case of Huntingdonshire was considered twice, but the Commission found that "there was no exceptional county allegiance to Huntingdonshire, as had been perceived in Rutland and Herefordshire".The Association of British Counties, with its regional affiliates, such as the Friends of Real Lancashire and the Yorkshire Ridings Society, promotes the historic counties. It states that the "...ABC contends that Britain needs a fixed popular geography, one divorced from the ever changing names and areas of local government...The ABC, therefore, seeks to fully re-establish the use of the historic counties as the standard popular geographical reference frame of Britain and to further encourage their use as a basis for social, sporting and cultural activities.
In 2013, Secretary of State for Communities and Local Government Eric Pickles formally recognised and acknowledged the continued existence of England's 39 historic counties. On 23 April 2014 a new initiative was announced to support the ‘tapestry’ of traditional English counties, including the removal of a restriction preventing the names of traditional counties being displayed on street and road signs. In August 2014, the first road sign was erected to mark the boundary of the historic county of Yorkshire. The Government is also publishing a new online interactive map of England’s county boundaries. The Government has previously changed rules to allow local and county flags to be flown without planning permission, and supported the Flag Institute in encouraging a new wave of county and community flags to be designed and flown by local communities. The flags of England's historic counties have been flown from Government offices in support of these identities. Of the 39 historic counties in England, 37 now have registered flags, many of them recently adopted. In July 2019 the UK Government published official guidance on Celebrating the Historic Counties of England, stating that
"the tapestry of England's historic counties is one of the bonds which draws our nation together".
Sussex and Yorkshire, both historic counties and long abandoned as units for administrative purposes, have continued to be widely recognised as cultural regions, significant in sport and used by many organisations as regional units. These counties, and several others, have a county day in which the culture and history of the historic county is celebrated; many of these county days were created in the 21st century.
A direct action group, CountyWatch, was formed in 2004 to remove what its members consider to be wrongly placed county boundary signs that do not mark the historic or traditional county boundaries of England and Wales. They have removed, resorted or erected a number of what they claim to be "wrongly sited" county boundary signs in various parts of England. For instance, in Lancashire 30 signs were removed. CountyWatch has been criticised for such actions by the councils that erected the signs: Lancashire County Council pointed out that the taxpayers would have to pay for the signs to be re-erected.
The only political party with a manifesto commitment to restore the boundaries and political functions of all ancient counties, including Middlesex and Monmouthshire, is the English Democrats Party.
Functions
By the late Middle Ages the county was being used as the basis of a number of functions.Administration of justice and law enforcement
The Assize Courts used counties, or their major divisions, as a basis for their organisation. Justices of the peace originating in Norman times as Knights of the Peace, were appointed in each county. At the head of the legal hierarchy were the High Sheriff and the Custos rotulorum for each county.The justices had responsibility for maintaining county gaols and houses of correction. During the 19th century penal reformers campaigned against the often primitive conditions in gaols, and under the Prison Act 1877 they came under Home Office control.
Until the 19th century law enforcement was mostly carried out at the parish level. With an increasingly mobile population, however, the system became outdated. Following the successful establishment of the Metropolitan Police in London, the County Police Act 1839 empowered justices of the peace to form county constabularies outside boroughs. The formation of county police forces was made compulsory by the County and Borough Police Act 1856.
Defence
In the 1540s the office of Lord Lieutenant was instituted. The lieutenants had a military role, previously exercised by the sheriffs, and were made responsible for raising and organising the militia in each county. The lieutenancies were subsequently given responsibility for the Volunteer Force. In 1871 the lieutenants lost their positions as heads of the militia, and their office became largely ceremonial. The Cardwell and Childers Reforms of the British Army linked the recruiting areas of infantry regiments to the counties.Parliamentary representation
Each English county sent two Knights of the Shire to the House of Commons. Yorkshire gained two members in 1821 when Grampound was disenfranchised. The Great Reform Act of 1832 reapportioned members throughout the counties, many of which were also split into parliamentary divisions. Constituencies based on the ancient county boundaries remained in use until 1918.Local government
From the 16th century onwards the county was increasingly used as a unit of local government as the justices of the peace took on various administrative functions known as "county business". This was transacted at the quarter sessions, summoned four times a year by the lord lieutenant. By the 19th century the county magistrates were exercising powers over the licensing of alehouses, the construction of bridges, prisons and asylums, the superintendence of main roads, public buildings and charitable institutions, and the regulation of weights and measures. The justices were empowered to levy local taxes to support these activities, and in 1739 these were unified as a single "county rate", under the control of a county treasurer. In order to build and maintain roads and bridges, a salaried county surveyor was to be appointed.By the 1880s it was being suggested that it would be more efficient if a wider variety of functions were provided on a county-wide basis.
Subdivisions
Some of the counties have major subdivisions. Of these, the most significant are the divisions of Yorkshire: the East Riding, West Riding, North Riding and the ainsty of York. Since Yorkshire is so big, its ridings became established as geographical terms quite apart from their original role as administrative divisions. The second largest county, Lincolnshire, was divided into three historic "parts": Parts of Lindsey, Holland and Kesteven. Other divisions include the special status of Tower Hamlets within Middlesex, those of Sussex into East Sussex and West Sussex and Suffolk into East Suffolk and West Suffolk, and, more informally and hence more vaguely, of Kent into East Kent and West Kent.Several counties had liberties or sokes within them that were administered separately. Cambridgeshire had the Isle of Ely, and Northamptonshire had the Soke of Peterborough. Such divisions were used by such entities as the Quarter Sessions courts and were inherited by the later administrative county areas under the control of county councils.
Most English counties were subdivided into smaller subdivisions called hundreds. Nottinghamshire, Yorkshire and Lincolnshire were divided into wapentakes, while Durham, Northumberland, Cumberland and Westmorland were divided into wards, areas originally organised for military purposes, each centred on a castle. Kent and Sussex had an intermediate level between their major subdivisions and their hundreds, known as lathes in Kent and rapes in Sussex. Hundreds or their equivalents were divided into tithings and parishes, which in turn were divided into townships and manors. In the 17th century the Ossulstone hundred of Middlesex was further divided into four divisions, which replaced the functions of the hundred. The borough and parish were the principal providers of local services throughout England until the creation of ad-hoc boards and, later, local government districts.
List of counties
The ancient counties are as follows:| County | Alternative names | Abbreviation | Additional status | Area rank in 1891 |
| Bedfordshire | County of Bedford | Beds | 36 | |
| Berkshire | County of Berks | Berks | Royal county | 34 |
| Buckinghamshire | County of Buckingham | Bucks | 33 | |
| Cambridgeshire | County of Cambridge | Cambs | 25 | |
| Cheshire | County of Chester | Ches | County palatine | 20 |
| Cornwall | Corn | Duchy + enjoyed some palatine powers | 15 | |
| Cumberland | Cumb | 11 | ||
| Derbyshire | County of Derby | Derbys | 19 | |
| Devon | Devonshire | 3 | ||
| Dorset | Dorsetshire | Dor | 23 | |
| Durham | County of Durham | Co Dur | County palatine | 21 |
| Essex | 10 | |||
| Gloucestershire | County of Gloucester | Glos | 17 | |
| Hampshire | County of Southampton, Southamptonshire | Hants | 8 | |
| Herefordshire | County of Hereford | Here | 27 | |
| Hertfordshire | County of Hertford | Herts | 35 | |
| Huntingdonshire | County of Huntingdon | Hunts | 37 | |
| Kent | 9 | |||
| Lancashire | County of Lancaster | Lancs | County palatine | 6 |
| Leicestershire | County of Leicester | Leics | 28 | |
| Lincolnshire | County of Lincoln | Lincs | 2 | |
| Middlesex | Mx, Middx, Mddx | 38 | ||
| Norfolk | Norf | 4 | ||
| Northamptonshire | County of Northampton | Northants | 22 | |
| Northumberland | Northumb, Northd | 5 | ||
| Nottinghamshire | County of Nottingham | Notts | 26 | |
| Oxfordshire | County of Oxford | Oxon | 31 | |
| Rutland | Rutlandshire | Rut | 39 | |
| Shropshire | County of Salop | Shrops, Salop | 16 | |
| Somerset | Somersetshire | Som | 7 | |
| Staffordshire | County of Stafford | Staffs, Staf | 18 | |
| Suffolk | Suff | 12 | ||
| Surrey | Sy | 30 | ||
| Sussex | Sx, Ssx | 13 | ||
| Warwickshire | County of Warwick | Warks, War, Warw | 24 | |
| Westmorland | Westm | 29 | ||
| Wiltshire | County of Wilts | Wilts | 14 | |
| Worcestershire | County of Worcester | Worcs | 32 | |
| Yorkshire | County of York | Yorks | 1 |
The historic counties of England are included in the Index of Place Names published by the Office for National Statistics. Each "place" included in the IPN is related to the historic county it lies within, as well as to a set of administrative areas.
Administrative and ceremonial uses
At the time of the 2009 structural changes to local government in England, the ancient counties continue to form, with considerably altered boundaries, many of the ceremonial and non-metropolitan counties in England. Some ancient counties have their names preserved in multiple contemporary units, such as Yorkshire in North Yorkshire and West Yorkshire or now correspond to another type of subdivision, such as the Huntingdonshire district. In some areas ancient counties have been abandoned for local government use and then later revived.Other uses
The vice counties, used for biological recording since 1852, are largely based on historic county boundaries. They ignore all exclaves and are modified by subdividing large counties and merging smaller areas into neighbouring counties; such as Rutland with Leicestershire and Furness with Westmorland. The static boundaries make longitudinal study of biodiversity easier. They also cover the rest of Great Britain and Ireland.Footnotes
- Note : 1889 areas recorded in 1891 census. Accurate measurements were not available until the 19th century, as a by-product of the Ordnance Survey's boundary survey. The officially recorded areas were adjusted to match the new data at the time of the 1861 Census, replacing the less reliable figures previously used by the Registrar General.