Characters with this skill have considerable knowledge of the local history, as well as a good idea of history in general. They are aware of all important events that have occured within their own 'home town' area in the last hundred years. What exactly constitutes an important event is left up to the gamesmaster, who can feed the player information as circumstances warrant. Test against Int to establish the extent or accuracy of knowledge about any particular event.
More distant history or non-local history is also available to characters, but in less detail.