The History of the Decline and Fall of the Roman Empire, by Edward Gibbon

Chapter XXVI: Progress of The Huns

Manners Of The Pastoral Nations.—Progress Of The Huns, From China To Europe.—Flight Of The Goths.—They Pass The Danube.—Gothic War.—Defeat And Death Of Valens.—Gratian Invests Theodosius With The Eastern Empire.—His Character And Success.—Peace And Settlement Of The Goths.