Many countries have over time changed their nature. What they typically do is stay more or less in the same shape. As a consequence of war, the shapes do change. The change is often reflected in the name. The country that is now called Zimbabwe was once called Rhodesia. It is relevant information and can be expressed using relations.
In OmegaWiki the relation type "was formerly known as" has been introduced to express this relation for countries. It demonstrates that OmegaWiki is not strictly a dictionary, it also serves the functions of a dictionary. By including different types of attributes to classes, we provide more worthwhile information.
Most concepts are related to other concepts and when these relations become visible, a net develops of related information. This does not make OmegaWiki an encyclopaedia, it is what an ontology does. An encyclopaedia we are not; we refer to Wikipedia.. :)