Firdaria

fir-DAH-ree-ah

persian: فیردار (Firdār)

Definition

Firdaria is a Persian-Arabic timing system (Persian firdār, Arabic firdārīya) that hands each stretch of life to a different planet in turn. It assigns consecutive years to the seven traditional planets plus the Moon's two nodes, in a fixed cyclic order. Which planet goes first depends on sect — day or night birth: a day chart begins with the Sun, a night chart with the Moon. The cycle runs about seventy-five years, and each major period splits into seven equal sub-periods (Arabic shārikūn, "associations") in which the other planets take turns as sub-ruler.

In Tradition

In Persian and Arabic predictive work, the firdaria is the top-level "clock" — it gives the dominant planetary signature of each big chapter of life. Astrologers then read annual profections, transits, and primary directions against it for finer detail. The major-lord sets the prevailing theme of the period; the active sub-lord colours the particular year; and the condition of both planets in the birth chart governs how the period feels.

In Practice

You first work out sect at birth — Sun above or below the horizon — then apply the matching starting sequence and lay the major periods out from age zero. The day sequence runs Sun 10 years, Venus 8, Mercury 13, Moon 9, Saturn 11, Jupiter 12, Mars 7, then North Node 3 and South Node 2; the night sequence begins with the Moon and continues in the same cyclic order. For any year you identify the active major-lord and sub-lord, then look at where each sits in the birth chart, its dignity (its essential strength), its aspects, and the houses it rules. Periods run by malefics — the harder-natured planets — or by weakly placed birth-chart significators tend to read as more challenging; periods of well-placed benefics as more supportive. Firdaria is not the same as the Hellenistic decennials (a separate scheme attributed to Critodemus and discussed by Valens), nor the Vedic Vimshottari Daśā — they share the idea of planetary periods but not the lengths or the way planets are assigned.

Historical Origin

Firdaria are first laid out in surviving form in Al-Biruni's Kitāb al-Tafhīm (c. 1029, §§438–439, Ramsay Wright translation 1934), which gives the sect-branching procedure and the seven-fold sub-period table in full encyclopedic detail. The technique descends from earlier Pahlavi Persian sources and is treated by Abu Ma'shar in his On the Revolutions of Nativities; it reached European practice through the medieval Latin transmission, notably Bonatti's Liber Astronomiae and later authors.

Definition

In Tradition

In Practice

Historical Origin

Further Reading