a line of verse containing six feet, usually dactyls (′ ˘ ˘). Dactylic hexameter is the oldest known form of Greek poetry and is the preeminent metre of narrative and didactic poetry in Greek and Latin, in which its position is comparable to that of iambic pentameter in English versification. The epics of Homer and of Virgil are composed in dactylic hexameter. Although the hexameter has been used in English verse by such 19th-century poets as Henry Wadsworth Longfellow (Longfellow, Henry Wadsworth) (notably in Evangeline), its rhythms are not readily adapted to the language, and it has never been a popular form.