▁the ▁ 3 rd ▁century ▁( see ▁Pe i ▁X iu ▁below ). ▁Among ▁the ▁three ▁maps ▁found ▁at ▁M aw ang du i ▁was ▁a ▁small ▁map ▁representing ▁the ▁tomb ▁area ▁where ▁it ▁was ▁found , ▁a ▁larger ▁top ographical ▁map ▁showing ▁the ▁Han ' s ▁borders ▁along ▁the ▁sub ordinate ▁Kingdom ▁of ▁Ch ang sha ▁and ▁the ▁N any ue ▁kingdom ▁( of ▁northern ▁Vietnam ▁and ▁parts ▁of ▁modern ▁Gu ang d ong ▁and ▁Gu ang xi ), ▁and ▁a ▁map ▁which ▁marks ▁the ▁positions ▁of ▁Han ▁military ▁g arr isons ▁that ▁were ▁employed ▁in ▁an ▁attack ▁against ▁N any ue ▁in ▁ 1 8 1 ▁BC . ▁ ▁An ▁early ▁text ▁that ▁mentioned ▁maps ▁was ▁the ▁R ites ▁of ▁Z hou . ▁Although ▁attributed ▁to ▁the ▁era ▁of ▁the ▁Z hou ▁D ynast y , ▁its ▁first ▁recorded ▁appearance ▁was ▁in ▁the ▁libraries ▁of ▁Prince ▁Li u ▁De ▁( c . ▁ 1 3 0 ▁BC ), ▁and ▁was ▁compiled ▁and ▁commented ▁on ▁by ▁Li u ▁X in ▁in ▁the ▁ 1 st ▁century ▁AD . ▁It ▁out lined ▁the ▁use ▁of ▁maps ▁that ▁were ▁made ▁for ▁government al ▁provinces ▁and ▁districts , ▁principal ities , ▁front ier ▁boundaries , ▁and ▁even ▁pin point ed ▁locations ▁of ▁or es ▁and ▁min er als ▁for ▁min ing ▁facilities . ▁Upon ▁the ▁invest iture ▁of ▁three ▁of ▁his ▁sons ▁as ▁fe ud al ▁princes ▁in ▁ 1 1 7 ▁BC , ▁Emperor ▁Wu ▁of ▁Han ▁had ▁maps ▁of ▁the ▁entire ▁emp ire