英语翻译
hehistoryofEnglishisconventionally,ifperhapstooneatly,dividedintothreeperiodsusuallycalledOld(orAnglo-Saxon)English,MiddleEnglish,andModernEnglish.TheearliestperiodbeginswiththemigrationofcertainGermanictribesfromthecontinenttoBritaininthefifthcenturyA.D.,thoughnorecordsoftheirlanguagesurvivefrombeforetheseventhcentury,anditcontinuesuntiltheendoftheseventhcenturyorabitlater.BythattimeLatin,OldNorse(thelanguageoftheVikinginvaders),andespeciallytheAnglo-NormanFrenchofthedominantclassaftertheNormanConquestin1066hadbeguntohaveasubstantialimpactonthevocabulary,andthewell-developedinflectionalsystemthattypifiesthegrammarofOldEnglishhadbeguntobreakdown.