Koinon (Κοινόν, pl. Κοινά, Koina), meaning `common` and interpreted as `commonwealth`, `league` or `federation` were a number of associations of cities in ancient and early modern Greek history. The Koinon was a form of government that had existed in various periods in Greek history. In Epirus itself there had in ancient times e... Found on http://en.wikipedia.org/wiki/Koinon