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
Royal Commission on the Amalgamation of the City and County of London of the LCC, Lord Rosebery, was strongly in favour of the unification of the city and county. Campaigning for the second county council elections in 1892, he set out the position of the Progressives: "The present arrangement by which a comparatively small district in the centre of London is detached from London and held aloof cannot be maintained. The object of parliament and of reformers must be that the city should be united with London as soon as possible and with as little friction as possible. Of all London reforms I lay infinitely the most stress on this, because each