Heroic couplets

A heroic couplet is a traditional form for English poetry, commonly used in epic and narrative poetry, and consisting of a rhyming pair of lines in iambic pentameter. Use of the heroic couplet was pioneered by Geoffrey Chaucer in the Legend of Good Women and the Canterbury Tales, and generally believed to have been perfected by John Dryden in the Restoration Age.

A frequently-cited example illustrating the use of heroic couplets is this passage from Cooper's Hill by John Denham, part of his description of the Thames:

The term "heroic couplet" is sometimes reserved for couplets that are largely closed and self-contained, as opposed to the enjambed couplets of poets like John Donne. The heroic couplet is often identified with the English Baroque works of John Dryden and Alexander Pope, who used the form for their translations of the epics of Virgil and Homer, respectively. Major poems in the closed couplet, apart from the works of Dryden and Pope, are Samuel Johnson's The Vanity of Human Wishes, Oliver Goldsmith's The Deserted Village, and John Keats's Lamia. The form was immensely popular in the 18th century. The looser type of couplet, with occasional enjambment, was one of the standard verse forms in medieval narrative poetry, largely because of the influence of the Canterbury Tales.

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