Thesaurus
Conurbation centered on London city; it is comprised of 33 unitary authorities (the City of London, thirteen Inner London boroughs, and nineteen Outer London boroughs) and their neighborhoods. Due to growth, towns and cities previously in other counties are now part of Greater London. The historic counties of Kent, Hertfordshire, and Essex extend in area beyond the current administrative counties with the same names to include substantial parts of Greater London. Most of Greater London south of the Thames was once part of the historic county of Surrey, while most of Greater London north of the Thames was historically part of the county of Middlesex. It is sometimes still referred to as a metropolitan county (formed 1965) although the council was abolished in 1986.
