▁similar ▁att raction ▁at ▁smaller ▁scale ▁for ▁their ▁region , ▁the ▁concept ▁of ▁the ▁reg i opol is ▁(" reg io " ▁for ▁short ) ▁was ▁introduced ▁by ▁German ▁academ ics ▁in ▁ 2 0 0 6 . ▁ ▁History ▁▁ ▁In ▁the ▁ancient ▁world , ▁a ▁metropol is ▁was ▁the ▁city ▁or ▁state ▁of ▁origin ▁of ▁a ▁col ony . ▁ ▁Et ym ology ▁and ▁modern ▁usage ▁ ▁Metropol is ▁( μ η τ ρ ό π ο λ ι ς ) ▁is ▁a ▁Greek ▁word , ▁coming ▁from ▁ μ ή τ η ρ , ▁m <0xE1> <0xB8> <0x97> t ē r ▁meaning ▁" m other " ▁and ▁ π ό λ ι ς , ▁p ól is ▁meaning ▁" city " ▁or ▁" town ", ▁which ▁is ▁how ▁the ▁Greek ▁colon ies ▁of ▁anti qu ity ▁referred ▁to ▁their ▁original ▁cities , ▁with ▁whom ▁they ▁retained ▁cult ic ▁and ▁political - c ult ural ▁connections . ▁The ▁word ▁was ▁used ▁in ▁post - class ical ▁Latin ▁for ▁the ▁chief ▁city ▁of ▁a ▁province , ▁the ▁seat ▁of ▁the ▁government ▁and , ▁in ▁particular , ▁ecc les iast ically ▁for ▁the ▁seat ▁or ▁see ▁of ▁a ▁metropol itan ▁bishop ▁to ▁whom ▁suff rag an ▁b ish ops ▁were ▁responsible . ▁This ▁usage ▁equ ates ▁the ▁province ▁with ▁the ▁dioc ese ▁or ▁epis cop al ▁see . ▁ ▁Global ▁city ▁ ▁The ▁concept ▁of ▁a ▁global ▁city ▁( or ▁world ▁city ) ▁is ▁of ▁a ▁city ▁that ▁has ▁a ▁direct ▁and ▁tang