Rise Of Bulgaria

S1 E1: The Huge Number Of Rebellions And Civil Wars That Took Place Within And Against The Eastern Roman Empire Is Known To Any Fan Of History But No Other Period Featured As Many Of Them As The Late 11th And 12th Centuries The Byzantines Surrounded By Enemies On All Sides Suffered Constant Attacks And This Period Effected A Profound Change In The Region That Reverberated Throughout The Centuries