Greater London is often referred to as "the City" or "the Square Mile" and it forms the main financial district. Archaically, the urbanised area of London was known as the Metropolis. In common usage, the terms "London" and "Greater London" are usually used interchangeably. Greater London is officially divided for some purposes, with varying definitions, into Inner London and Outer London. For some strategic planning purposes it is divided into five sub-regions. Greater London is under the strategic local governance of the Greater London Authority (GLA). It consists of an elected assembly, the London Assembly, and an executive head, the Mayor of
Wards of the City of London their wards, but that boundary review and the current review do take into account of these historic/traditional connections. The City of London Police use the wards in their day-to-day neighbourhood policing, as well as in recording crime and other statistics, with each ward having a constable assigned, known as the Ward Constable, with the larger wards having Assistant Ward Constables in addition. In 1322 it was settled that an assembly consisting of two people elected from each ward would create ordinances for the whole City; in 1346 the number of representatives from each ward was formally linked to the size