medi ately ▁before ▁abol ition , ▁the ▁county ▁extended ▁over ▁a ▁cres cent - sh aped ▁area ▁adjacent ▁to , ▁and ▁surrounding , ▁the ▁south west ▁of ▁Shang hai ' s ▁city ▁centre . 。 ▁ ▁History ▁ ▁In ▁ 1 2 9 0 , ▁Bus a ▁Han wen ▁( <0xE5> <0x83> <0x95> <0xE6> <0x95> <0xA3> <0xE7> <0xBF> <0xB0> 文 ), ▁the ▁J urch en ▁governor ▁of ▁Song ji ang ▁Pref ect ure ▁requested ▁that ▁Kub la i ▁Khan , ▁as ▁the ▁Sh iz u ▁em peror ▁of ▁Y uan , ▁appro ve ▁the ▁division ▁of ▁Hu ating ▁County ▁into ▁two , ▁on ▁the ▁basis ▁of ▁administrative ▁difficulty ▁due ▁to ▁Hu ating ' s ▁large ▁area ▁and ▁dense ▁population . ▁The ▁request ▁was ▁approved ▁by ▁the ▁Y uan ▁court ▁in ▁ 1 2 9 1 ▁and ▁Shang hai ▁County ▁was ▁established ▁in ▁ 1 2 9 2 . ▁The ▁first ▁perman ently ▁appointed ▁county ▁governor , ▁Z hou ▁Ru ji , ▁arrived ▁in ▁ 1 2 9 4 . ▁ ▁From ▁ 1 8 4 5 , ▁due ▁to ▁the ▁establishment ▁of ▁foreign ▁con cess ions ▁in ▁Shang hai , ▁the ▁area ▁under ▁the ▁effective ▁control ▁of ▁Shang hai ▁County ▁gradually ▁reduced . ▁By ▁ 1 9 1 1 , ▁the ▁areas ▁under ▁the ▁effective ▁control ▁of ▁the ▁County ▁included ▁the ▁Old ▁City ▁( the ▁county ▁seat ) ▁and ▁surrounding ▁areas , ▁Zh abei ▁and ▁X u hui , ▁as ▁well ▁as ▁the ▁dock lands ▁by ▁the ▁Hu ang pu ▁River ▁which ▁are