ChinesesealcarvingfirstappearedinancienttimesandwasusedthroughouttheQinDynasty.ItwasinitiallyemployedasanimperialsealnamedXi.Theseimperialsealcarvingswereusedonlybytheroyalty.Followingthisdynasty,moredifferentkindsofsealsappearedandwereusedbyprivatefolksaspersonalizedstamps.Thesenon-officialstampswerecalledYin.DuringtheTangDynasty,thesealswasrenamedBaoasaresultofsuperstitionsincethepronunciationofXiissimilartothatofanotherChinesecharactcrwhichmeansdeath.