Dramatic unities, three rules of dramatic construction prescribed by Aristotle, observed by the French dramatists, but ignored by Shakespeare, that (1) a play should represent what takes place within eight hours, (2) there must be no change of locality, and (3) there must be no minor plot.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Drakenberg Mountains * Drammen