| To further explain what is acceptable and what isn't:
States that merely formed new governments are not acceptable; the change from the Irish Free State to modern Ireland would not be acceptable, for example, nor would be the change from the Pahlavi dynasty to the Islamic Republic of Iran. However, the change from the Kingdom of England to the U.K. (with Scotland) would be acceptable, since it involved a merge of territories, as would the conquest of the Sassanids by the Rashidun Caliphate. Furthermore, the union of the U.K. and the Kingdom of Ireland would still be acceptable, even though a modern country bears the name of Ireland, since it ceased to be independent. Things that were formally independent entities but defacto controlled by another country (e.g. dominions of the U.K., kingdoms ruled in a personal union, client states of the Roman Empire, etc.) are fair game. |
Countries of Europe 
Countries of Africa 
Countries of Asia
