The practice of
gematria, assigning numerical values to words and names and imputing those values with religious meaning, dates back to antiquity. An
Assyrian inscription from the 8th century BC, commissioned by
Sargon II declares "the king built the wall of Khorsabad 16,283 cubits long to correspond with the numerical value of his name".
Rabbinic literature used gematria to interpret passages in the
Hebrew Bible. The practice of using alphabetic letters to represent numbers developed in the Greek city of
Miletus, and is thus known as the Milesian system. Early examples include vase graffiti dating back to the 6th century BCE. Aristotle wrote that the
Pythagorean tradition, founded in the 6th century by
Pythagoras of Samos, practiced
isopsephy, the Greek predecessor of Hebrew
gematria. Pythagoras was a contemporary of the philosophers
Anaximander,
Anaximenes, and the historian
Hecataeus, all of whom lived in Miletus, across the sea from
Samos. The Milesian system was in common use by the reign of
Alexander the Great (336–323 BCE) and was adopted by other cultures during the subsequent
Hellenistic period. It was officially adopted in Egypt during the reign of
Ptolemy II Philadelphus (284–246 BCE). By the late 4th century AD, following the
Edict of Thessalonica in 380 AD and the subsequent enforcement of
Nicene Christianity under
Theodosius I, departures from the beliefs of the
state church were classified as civil violations within the
Roman Empire. Numerology, referred to as
isopsephy, remained in use in conservative
Greek Orthodox circles, particularly in mystical and theological contexts. Some
alchemical theories were closely related to numerology. For example, Arab alchemist
Jabir ibn Hayyan (died c. 806−816) framed his experiments in an elaborate numerology based on the names of substances in the
Arabic language. Numerology is prominent in Sir
Thomas Browne's 1658 literary discourse
The Garden of Cyrus. Throughout its pages, the author attempts to demonstrate that the number five and the related
quincunx pattern can be found throughout the arts, in design, and in nature, particularly botany. Some approaches to understanding the meanings of the
Qur'an (the book of Muslims) include the understanding of numerical meanings, numerical symbols and their combination with purely textual approaches. == Methods ==