Moses Maimonides, original name Moses Ben Maimon, also called Rambam, Arabic name Abū ʿImran Mūsā ibn Maymūn ibn ʿUbayd Allāh (born March 30, 1135, Córdoba [Spain]—died Dec. 13, 1204, Egypt), Jewish philosopher, jurist, and physician, the foremost intellectual figure of medieval Judaism. His first major work, begun at age 23 and completed 10 years later, was a commentary on the Mishna, the collected Jewish oral laws. A monumental code of Jewish law followed in Hebrew, The Guide for the Perplexed in Arabic, and numerous other works, many of major importance. His contributions in religion, philosophy, and medicine have influenced Jewish and non-Jewish scholars alike.
[excerpt from Encyclopaedia Britannica]