From the 9th to the 19th centuries, scholars and scribes used Arabic as a lingua franca to debate scientific ideas. Arabic-speaking scholars translated classical Greek, Persian and even Sanskrit texts on topics such as medicine, mathematics and astronomy. These scholars went far beyond translation and preservation and fostered a unique and vibrant scientific culture within the Arabic-speaking world. The British Library and Qatar Foundation have joined forces to launch a new bilingual online portal, the Qatar Digital Library, providing free access to 25,000 pages of fascinating medieval Arabic manuscript. Here’s a selection of some of the most influential scientific texts in history

