Firdaria Doctrine

A medieval Perso-Arabic period system that assigns long planetary time periods and smaller subperiods across a seventy-five-year cycle.

TopicTiming technique

TraditionsMedieval Arabic/Persian, Modern/Contemporary

AuthorsAbu Ma'shar, Chris Brennan, Demetra George

Source texts5

Documented rules4

Method families1

Method coverage

Engine source-bundle coverage rows that support this reference page.

Timing calculation

Firdaria

SupportedTiming Techniques4

Source notes

A medieval Perso-Arabic period system that assigns long planetary time periods and smaller subperiods across a seventy-five-year cycle.
Firdaria belongs to the larger family of time-lord and period techniques, adjacent to profections, decennials, and revolution-year work.
Firdaria is presented here as a planetary period timeline, with different starting sequences for day and night births.
Interpretive outcome language remains outside this seed page until separate facts or rules are reviewed.
It does not publish interpretive blending with transits, profections, or revolutions.
The active lane uses separate diurnal and nocturnal major-period sequences, a seventy-five-year cycle, and equal seventh-part subdivisions inside planetary periods.
The current description should not be used as a universal claim about every firdaria tradition.
The local notes connect the active lane to medieval Persian and Arabic transmission, while modern Hellenistic sources provide context for time-lord families more generally.
The lunar nodes are treated as terminal periods in this lane and do not receive the same subperiod subdivision as the seven planets.
The page avoids treating later reconstruction choices as source language.
The page is limited to source-key citations and does not expose local extraction filenames.
The page supports reference pages for the major and subperiod timeline, the day-night sequence distinction, and the seventy-five-year cycle.
The public description names the currently reviewed lane without implying that all historical firdaria variants have been settled.
The source notes preserve a larger firdaria family, including possible differences in node placement and subdivision policy.
This public page describes the reviewed equal-subperiod lane only.

Doctrine sections

Each section groups reviewed rule notes by topic and lists the sources those notes draw on.

Section

Firdaria

4 documented rules with 1 listed source.

Source texts

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.).

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

Abu Ma'shar firdaria initial subperiod

Abu Ma'shardirect aphorismimplemented

When the active firdaria subperiod is ruled by the same lord as the major period, this indicates Abu Ma'shar's rule that the subdivision begins with the period lord itself.

Calculation notes

Calculate the sect-light firdaria sequence, locate the native's age within the major period, then subdivide the active period into equal sevenths for subperiod rules.

Rule sources

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

Abu Ma'shar firdaria major period

Abu Ma'shardirect aphorismimplemented

The active firdaria major lord can be read as the current Persian period lord descending from the sect-light sequence.

Calculation notes

Calculate the sect-light firdaria sequence, locate the native's age within the major period, then subdivide the active period into equal sevenths for subperiod rules.

Rule sources

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

Abu Ma'shar firdaria node period

Abu Ma'shardirect aphorismimplemented

When a nodal firdaria period is active, this indicates Abu Ma'shar's terminal Dragon's Head or Tail phase directly.

Calculation notes

Calculate the sect-light firdaria sequence, locate the native's age within the major period, then subdivide the active period into equal sevenths for subperiod rules.

Rule sources

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

Abu Ma'shar firdaria subperiod

Abu Ma'shardirect aphorismimplemented

The active firdaria sub-lord can be read as the equal seventh-part subdivision of the current Persian period.

Calculation notes

Calculate the sect-light firdaria sequence, locate the native's age within the major period, then subdivide the active period into equal sevenths for subperiod rules.

Rule sources

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

All doctrines

Firdaria Doctrine

A medieval Perso-Arabic period system that assigns long planetary time periods and smaller subperiods across a seventy-five-year cycle.

TopicTiming technique

TraditionsMedieval Arabic/Persian, Modern/Contemporary

AuthorsAbu Ma'shar, Chris Brennan, Demetra George

Source texts5

Documented rules4

Method families1

Method coverage

Engine source-bundle coverage rows that support this reference page.

Timing calculation

Firdaria

SupportedTiming Techniques4

Source notes

A medieval Perso-Arabic period system that assigns long planetary time periods and smaller subperiods across a seventy-five-year cycle.
Firdaria belongs to the larger family of time-lord and period techniques, adjacent to profections, decennials, and revolution-year work.
Firdaria is presented here as a planetary period timeline, with different starting sequences for day and night births.
Interpretive outcome language remains outside this seed page until separate facts or rules are reviewed.
It does not publish interpretive blending with transits, profections, or revolutions.
The active lane uses separate diurnal and nocturnal major-period sequences, a seventy-five-year cycle, and equal seventh-part subdivisions inside planetary periods.
The current description should not be used as a universal claim about every firdaria tradition.
The local notes connect the active lane to medieval Persian and Arabic transmission, while modern Hellenistic sources provide context for time-lord families more generally.
The lunar nodes are treated as terminal periods in this lane and do not receive the same subperiod subdivision as the seven planets.
The page avoids treating later reconstruction choices as source language.
The page is limited to source-key citations and does not expose local extraction filenames.
The page supports reference pages for the major and subperiod timeline, the day-night sequence distinction, and the seventy-five-year cycle.
The public description names the currently reviewed lane without implying that all historical firdaria variants have been settled.
The source notes preserve a larger firdaria family, including possible differences in node placement and subdivision policy.
This public page describes the reviewed equal-subperiod lane only.

Doctrine sections

Each section groups reviewed rule notes by topic and lists the sources those notes draw on.

Section

Firdaria

4 documented rules with 1 listed source.

Source texts

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.).

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

Abu Ma'shar firdaria initial subperiod

Abu Ma'shardirect aphorismimplemented

When the active firdaria subperiod is ruled by the same lord as the major period, this indicates Abu Ma'shar's rule that the subdivision begins with the period lord itself.

Calculation notes

Calculate the sect-light firdaria sequence, locate the native's age within the major period, then subdivide the active period into equal sevenths for subperiod rules.

Rule sources

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

Abu Ma'shar firdaria major period

Abu Ma'shardirect aphorismimplemented

The active firdaria major lord can be read as the current Persian period lord descending from the sect-light sequence.

Calculation notes

Calculate the sect-light firdaria sequence, locate the native's age within the major period, then subdivide the active period into equal sevenths for subperiod rules.

Rule sources

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

Abu Ma'shar firdaria node period

Abu Ma'shardirect aphorismimplemented

When a nodal firdaria period is active, this indicates Abu Ma'shar's terminal Dragon's Head or Tail phase directly.

Calculation notes

Calculate the sect-light firdaria sequence, locate the native's age within the major period, then subdivide the active period into equal sevenths for subperiod rules.

Rule sources

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.

Abu Ma'shar firdaria subperiod

Abu Ma'shardirect aphorismimplemented

The active firdaria sub-lord can be read as the equal seventh-part subdivision of the current Persian period.

Calculation notes

Calculate the sect-light firdaria sequence, locate the native's age within the major period, then subdivide the active period into equal sevenths for subperiod rules.

Rule sources

2 locator entries

Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1276-1291.
Abu Ma'shar. (2010). Persian Nativities III: On Solar Revolutions (Benjamin N. Dykes, Trans.), 1285-1291.