In the historiography of Europe the phrase the long 8th century is sometimes used to refer to the period of circa AD 660–820.
in tHe hIstorioGRApHy of eUrope tHE PhraSe the lONG 8th CeNturY iS SoMEtimes uSed to Refer to The perIod oF cIRca ad 660–820.