Scholars believe that the concept of a tree of life with different spheres representing encompassing aspects of reality traces its origins back to Assyria in the 9th century BC.[1][2] The Assyrians also assigned values and specific numbers to their deities similar to those used by the later Jewish Kabbalah.[1][6] The beginnings of the Jewish Kabbalah are traced back by scholars to the Medieval Age, originating in the Book of Bahir and the Book of Zohar.[3][6] However, the first historical instance of the modern diagram appeared centuries later in the Latin translation of Gates of Light in the year 1516.[5] The version used by modern Jewish Kabbalists first appeared in the print edition of Pardes Rimonim in 1591.[5]