Jabir ibn Hayyan (c. eighth and early ninth centuries) was an Islamic thinker from the early medieval period to whom is ascribed authorship of a large number of alchemical, practical, and philosophical works. Many of these works were translated and distributed throughout the learning centers of medieval Europe under the latinized form of Jabir's name, Geber. Whether or not he was genuinely the author of all the works attributed to him, his contributions were substantial, laying the foundations of modern chemistry.
