| − | A.D. 235-284, Roman emperors who seized power with an army, usually from a low-class family. | + | A.D. 235-284, [[Roman]] [[emperor]]s who seized power using the [[army]] as a base; they usually came from a [[poverty]]-stricken [[rural]] background. [[Diocletian]] (ruled 284-305 AD) was the most famous example. |