Questions related to the City of London - the small region in the centre of Greater London which houses the financial district, St Paul's Cathedral, the Old Bailey, and other notable sites. Questions relating to the London boroughs should probably use the [united-kingdom] or [england-and-wales] tags.

The City of London is often confused with Greater London, but they are distinct entities.

The City was, once, the whole of London, going back to Roman times. What is now Greater London was a collection of separate towns and villages (plus the City of Westminster) which, over time, merged into a large conurbation before being organised as boroughs and combined into the county of Greater London in 1965.

Questions relating to the London boroughs should probably use the or tags.