IntheTangDynasty,peoplestartedtobuildkilnstomakebluishwhiteporcelaininChangnan.Thebluishwhiteporcelainwasglitteringandhadthereputationofartificialjade,soitbecamefamoushomeandabroadandwasexportedtoEuropeinlargeamount.Atthattime,Europeanswerenotabletomakeporcelain,soporcelainfromChina,especiallyfromChangnan,waswarmlywelcomed.InEurope,porcelainfromChangnanwasluxuriousarticlecherishedbyeveryone,andobtainingevenonepieceofitwouldmakepeoplefeelveryproud.Inthisway,EuropeansusedChangnanasthecodenameforchina(porcelain)andtheplaceofitsproduction,China.Gradually,EuropeansforgottheoriginalmeaningofChangnan,onlyrememberingitis“china”,namely“China”.