- Baghdad
- the caliphs' city and the great centre of translation in its era
- the Abbasids
- the dynasty that built it at its golden era's height
- al-Ma'mun
- the caliph who took it to the summit of learning and glory
- translation
- the movement that carried the sciences from every tongue into Arabic
- al-Khwarizmi
- the algebra scholar who worked and wrote within her in her era
- the library
- the place of precious books and manuscripts standing within her
- the copyists
- those who copied the texts by hand, page upon page
- astronomy
- watching the sky and its stars in her learned service
- algebra
- the equation-science first written in history within her walls
- the observatory
- the place of measuring the stars and watching their states
- the translators
- those who carried books with learning's faithfulness from tongue to tongue
- the translation movement
- the movement that preserved Greek learning for the whole world
