Metropolis = Polis^(5/4)
8.4 Million = 346,000^1.25
~24 Networked Poli
Wikipedia Definition
A metropolis () is a large city or conurbation which is a significant economic, political, and cultural center for a country or region, and an important hub for regional or international connections, commerce, and communications. The term is Greek (Greek: μητρόπολη) and means the "mother city" of a colony (in the ancient sense), that is, the city which sent out settlers. This was later generalized to a city regarded as a center of a specified activity, or any large, important city in a nation - wikipedia 
A big city belonging to a larger urban agglomeration, but which is not the core of that agglomeration, is not generally considered a metropolis but a part of it. The plural of the word is metropolises, although the Latin plural is "metropoles", from the Greek "metropoleis" (Greek: μητρoπόλεις).
For urban centers outside metropolitan areas that generate a similar attraction at smaller scale for their region, the concept of the regiopolis, short regio, was introduced by German professors in 2006.
# See also * History * Etymology and modern usage * Global city * Africa * Asia * Europe * North America * Oceania * South America * Metropolis as a mainland area * See also * References * Further reading