Rubaʿi the convention is sometimes extended so that the unrhymed line of the current stanza becomes the rhyme for the following stanza. The structure can be made cyclical by linking the unrhymed line of the final stanza back to the first stanza: ZZAZ. These more stringent systems were not, however, used by FitzGerald in his "Rubaiyat". Rubaʿi Rubāʿī (from "rubāʿiyy", plural "rubāʿiyāt") is the term for a quatrain, a poem or a verse of a poem consisting of four lines. It refers specifically to a form of Persian poetry, or its derivative form in English and other languages In classical Persian
Decasyllabic quatrain lines of verse in 304 stanzas, each with a period at the end to show a "completeness" in each stanza. While the form had achieved fame with other poets of Dryden's era and was considered "fashionable" by figures of the literary world, Dryden's poem quickly became known as the standard-bearer of the genre. In 1751, Thomas Gray published "Elegy Written in a Country Churchyard", composed in the heroic stanza. Written in iambic pentameter, the poem followed the same metrical and structural patterns seen in "Annus Mirabilis", but the use of the poetic form in an elegy gave it the title