文档介绍：Chengde,'shistory:theGreatWallinnorthernChina,beganintheWarringStatesQin,Zhao,,Qin,Zhao,YaninthenorthofthereasonsfortheconstructionoftheGreatWallQinZhaoYanwhyshouldtheconstructionoftheGreatWallinthenorth,,themiddleandlowerreachesoftheYangtzeRiverisChina',ZhuXiacultureandtheQin,ChuandWu,themoreculturalexchangeandintegration,,Zhao,Han,Chu,Qi,Qin,YanQiafterapowerfulandprosperouscountry,tomergethewar,seekingtoforcereunificationoftheYellowRiver,,innorthernShaanxi,ShanxiProvince,northernHebeiProvinceandInnerMongoliagrasslandonthevariousethnicminoritieshaveastrong,constantLulueQin,Zhao,'snorth,justdrainage,northoftheHuns;NorthwestZhaoLinHu,Loufan,theNorthhasDanLan,theHuns;Yan-guoNorth-,withtheexceptionofjusticedrainageinagriculture,theotherarenomadic,,sincetheSpringandAutumnandWarringStates,,theEast-nomadicpeoples,suchasthemilitaryismorehigh-quality,"HistoricalRecords•BiographyoftheHuns,"records:theHunsweretonomadic,huntingaliving,livestocktohorses,cattle,sheepforthelargest,followedbycamels,donkeys,mules,"movementbywaterplants,WuChangcastle,."YoungmenonthestudyJishe."Infantscanridesheep,micewitharch-launchedbirds;littlelonger,theradioFoxrabbit;usedforfood."Therefore,toanadult,"makeforaride."OftheWarringStatesPeriod,,lefttheirhomeunder,YouxianWang,leftand