Caliph Al-Mansur founds the city of Baghdad, which grows into the political and intellectual heart of the Abbasid Caliphate.
Caliph Al-Ma'mun establishes the Bayt al-Hikma in Baghdad, an institute for translation, study and research.
The Persian mathematician Al-Khwarizmi writes his influential treatise on algebra, laying the foundation for modern mathematics.
The Persian physician Al-Razi (Rhazes) completes his extensive medical works, including the Kitab al-Hawi.
Under the Caliphate of Córdoba, the city grows into one of the most enlightened cities in Europe, with libraries, universities and religious tolerance.
The mathematician and physicist Ibn al-Haytham completes his groundbreaking Book of Optics, which lays the foundation for the modern science of light.
The Persian polymath Ibn Sina (Avicenna) writes his monumental medical encyclopaedia, which becomes the standard for centuries in both the Islamic world and Europe.
The versatile scholar Al-Biruni completes his work Kitab al-Hind, an in-depth study of Indian culture, science and religion.
Mongol forces led by Hulagu Khan conquer and destroy Baghdad, marking a symbolic end to the Islamic Golden Age.
In this renowned center of learning, Christian, Jewish and Islamic scholars worked side by side to translate Greek, Persian and Indian texts into Arabic. Works by Aristotle, Ptolemy and Euclid were preserved and annotated here, ensuring that knowledge which might otherwise have been lost was preserved for future generations.