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 Council is given (for both before and after the 2013 election); being largely based on the size of the electorate, this gives some indication as to the present number of residents (with respect to the four residential wards) and the scale of business activity. (A † symbol is shown where the representation has been capped despite the normal allocation rules.) Wards of the City of London The City of London (also known simply as "the City") is divided into 25 wards. The City is the historic core of the much wider metropolis of Greater London, with an ancient and "sui