Metropolitan borough
A
metropolitan borough is the style of a sub-division of a
metropolitan county. The first metropolitan boroughs in
England were created in 1887 with the formation of
London County Council, and others were created with the expansion of the LCC into the Metropolitan County of
Greater London, and the formation of the new metropolitan counties of
Greater Manchester,
Merseyside,
South Yorkshire,
Tyne and Wear,
West Midlands, and
West Yorkshire.
Most of the boroughs are now unitary authorities, but many are still styled 'metropolitan borough of x'.
See also: London borough, Metropolitan Counties of England.