The Rubaiyat of Omar Khayyam is a collection of poems authored by Persian astronomer and mathematician Omar Khayyam. The poems in this title are written into quatrains, Rubaiyat being arabic for root of four, as in four line verses of which quatrains are made up of. This popular edition of the Rubaiyat of Omar Khayyam is the edition by Edward Fitzgerald, who translated this work in the late 19th century.