| The Ruhr area really is a tricky one. Essen is not its largest city (that would be Dortmund albeit they're basically same sized), it is divided into three administrative regions which stretch way north, east and south of it respectively, the administrative capital of the Essen part would probably be Düsseldorf which often is instead put into the Cologne metro area (only never tell a Düsseldorfer...), so there's no really satisfying way to include it. Waht's more, it has roughly 5.2 million inhabitants, so it's already split here along lines unknown, but possibly not along administrative lines. On the other hand, in the past (1980s) it used to be referred to as "Essen area". Wouldn't know how to handle it well, most probably you just can't handle it well. |
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