3031864 Illustration from \'Rubaiyat of Omar Khayyam\', 1920 (engraving) by Balfour, Ronald (1896-1941); Private Collection; (add.info.: The Rubaiyat of Omar Khayyam is the title that Edward FitzGerald gave to his translation of a selection of poems, originally written in Persian and numbering about a thousand, attributed to Omar Khayyam (1048??131), a Persian poet, mathematician, and astronomer. A ruba\'i is a two-line stanza with two parts (or hemistichs) per line, hence the word rubaiyat (derived from the Arabic language root for "four"), meaning "quatrains".); British, out of copyright.