London Wiki

The central area of London - in effect the area covered by the London County Council.

London Government Act 1963[]

The inner London boroughs were defined by the London Government Act 1963, (Office of Public Sector Information - [ London Government Act 1963 (c.33) (as amended)) and the definition is used for purposes such as the local government finance system.(url= authority lower tier boundaries - Greater London}}) They correspond to the former area of the County of London. These inner London boroughs are:

More information on the Wikipedia page [1]