Ancient Rome Timeline of Military
governed by Rome started to challenge Roman authority by the first several centuries CE. The restructuring of the Roman Empire was one of the death blows to its power. "Major reorganization of the empire was undertaken by Diocletian (ruled 284-305), who formally divided Roman territory into a Western Empire and an Eastern Empire, each administered by an Augustus (senior emperor) and a junior Caesar (subordinate emperor) -- a system known as the Tetrarchy." The Tetrarchy was a sensible solution to a major political problem but the Tetrarchy also… Continue Reading...