Traditions of the sky

Historical astrological interpretation · Review status: awaiting specialist review

Mesopotamian celestial omens

In ancient Mesopotamia, scribes recorded the sky as a source of omens for the king and the land, not for private individuals. The great omen series known as Enuma Anu Enlil collected thousands of such omens. Personal birth horoscopes came much later; the oldest known ones, written in cuneiform, date from the late fifth century BCE.

These were omens for kingdoms, read by court specialists. They are not the personal sun-sign astrology of modern magazines.

Withheld pending specialist review: Details of individual omen texts and their dating are withheld until an Assyriologist reviews them.

Historical astrological interpretation · Review status: awaiting specialist review

Hellenistic astrology

Horoscopic astrology, which reads the sky at the moment of birth, took shape in the Hellenistic world, especially in Egypt, in the last centuries BCE. It combined Babylonian sky-watching with Greek mathematics and philosophy. Claudius Ptolemy's Tetrabiblos, written in the second century CE, became its most influential handbook. Philosophers argued over it from the start, above all over fate and human responsibility.

The seven planets, twelve signs, and planetary rulerships used on this site come from this tradition and the Western traditions that grew out of it.

Historical astrological interpretation · Review status: awaiting specialist review

Indian Jyotisha

Jyotisha, the science of light, began in India as the study of time for Vedic ritual and is counted among the Vedangas, the auxiliary disciplines of the Veda. It divides the Moon's path into twenty-seven or twenty-eight lunar mansions, the nakshatras. Horoscopic methods arrived later, partly through contact with Greek astrology, and were developed in India in their own way.

Jyotisha usually measures the signs against the stars (sidereal), not the seasons (tropical), so its sign dates differ from Western ones. It is a living tradition with its own teachers.

Withheld pending specialist review: Teachings on specific nakshatras and their uses are withheld until a scholar or practitioner of Jyotisha reviews them.

Historical astrological interpretation · Review status: awaiting specialist review

Chinese celestial traditions

In imperial China, astronomers in the service of the state watched the sky for signs concerning the ruler and kept careful records of eclipses, comets, and new stars. The twelve animals of the Chinese zodiac belong to a calendar of years: combined with the ten Heavenly Stems, they form a cycle of sixty years.

The twelve animals count years, not months, and are a separate system from the Western twelve signs. They should not be matched one to one.

Withheld pending specialist review: Interpretations of individual animals and elements are withheld until a specialist in Chinese history reviews them.