Numerology (known prior to the 20th century as arithmancy) is the belief in an occult, divine or mystical relationship between a number and one or more coinciding events. It is also the study of the numerical value, via an alphanumeric system, of the letters in words and names. When numerology is applied to a person's name, it is a form of onomancy. It is often associated with the paranormal, alongside astrology, and is similar to divinatory arts.
The term numerologist can be used for those who place faith in numerical patterns and draw inferences from them, even if those people do not practice traditional numerology. For example, in his 1997 book Numerology: Or What Pythagoras Wrought (), mathematician Underwood Dudley uses the term to discuss practitioners of the Elliott wave principle of stock market analysis.
The term arithmancy is derived from two Greek words – arithmos (meaning number) and manteia (meaning divination). "Αριθμομαντεία" Arithmancy is thus the study of divination through numbers. Although the word "arithmancy" dates to the 1570s, the word "numerology" is not recorded in English before c. 1907.
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 6th-century BCE philosopher and mystic Pythagoras believed that numbers carried sacred codes and were divinely inspired and created.
In 325 AD, following the First Council of Nicaea, 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.
Some alchemical theories were closely related to numerology. For example, Persian-Arab alchemist Jabir ibn Hayyan (died c.
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Pythagoreanism originated in the 6th century BC, based on and around the teachings and beliefs held by Pythagoras and his followers, the Pythagoreans. Pythagoras established the first Pythagorean community in the ancient Greek colony of Kroton, in modern Calabria (Italy). Early Pythagorean communities spread throughout Magna Graecia. Pythagoras' death and disputes about his teachings led to the development of two philosophical traditions within Pythagoreanism.
The occult, in the broadest sense, is a category of esoteric supernatural beliefs and practices which generally fall outside the scope of organized religion and science, encompassing phenomena involving otherworldly agency, such as magic and mysticism and their varied spells. It can also refer to supernatural ideas like extra-sensory perception and parapsychology. The term occult sciences was used in 16th-century Europe to refer to astrology, alchemy, and natural magic.
John Dee (13 July 1527 – 1608 or 1609) was an English mathematician, astronomer, astrologer, teacher, occultist, and alchemist. He was the court astronomer for, and advisor to, Elizabeth I, and spent much of his time on alchemy, divination, and Hermetic philosophy. As an antiquarian, he had one of the largest libraries in England at the time. As a political advisor, he advocated the foundation of English colonies in the New World to form a "British Empire", a term he is credited with coining.
We show that the transcendence degree of a real function field over an arbitrary real base field is a strict lower bound for its Pythagoras number and a weak lower bound for all its higher Pythagoras numbers. ...