Research date: September 28, 2026; reorganized on October 4, 2026 under the "three time scales" framework; the original draft is backed up as report-20260928-backup.md. Conventions: this report strictly distinguishes "traditional Bön accounts" from "modern scholarly views"; important proper names are given with their Tibetan (Wylie transliteration) or English originals; every piece of information notes its source (URL or book title). "verified live" means the page was opened and verified in a live browser on the research date; "index" means content captured via search-engine indexing.

Introduction: Why "Three Time Scales"

One and the same Tonpa Shenrab Miwoche (ston pa gshen rab mi bo che), placed within three different temporal frameworks, presents three entirely different faces:

• The first scale — tradition: time as told in Bön's religious self-account. Shenrab was born in 16017 BCE, lived 82 "divine years," and passed into nirvana in 7817 BCE; there are royal palaces, kingdoms, writing, and wars against demons. This is time internal to the faith; what it measures is religious meaning, not historical chronology.
• The second scale — textual history: the age when the texts actually appeared. None of the extant biographies of Shenrab predates the 10th century; of the three biographical works, two are regarded by Bön as terma (gter ma) unearthed in the 10th–11th centuries, and one as a 14th-century dictated record. This scale measures "the age when the stories were written down."
• The third scale — world archaeology: the time of material remains. Around 16000 BCE, the entire world (including the Tibetan Plateau) was in the hunter-gatherer stage of the Late Paleolithic — no agriculture, no cities, no writing. This scale measures "the actual living conditions of humankind at the time."

The three scales are laid out separately, with no presupposed position and no conversion between them. Readers may judge for themselves how one religious tradition can stand simultaneously within three kinds of time.

The First Time Scale: Tradition — Shenrab in Bön's Religious Self-Account

All of the following are traditional Bön accounts; they do not represent historical fact.

1.1 Identity: The "Eighth Buddha" of Yungdrung Bön

Tonpa Shenrab Miwoche is the acknowledged founder of Yungdrung Bön. "Tonpa" means "founder, teacher"; "Shenrab" is interpreted by Bönpos as "Buddha." His full name is generally written Ston pa Gshen rab Mi bo che; his original name was Mura Tahen (Dmu-ra ta-han).

Bön tradition calls him the "Eighth Buddha" of Yungdrung Bön (the eighth Buddha of Yungdrung Bön): in the buddha-realm of Sidpa Yesang (Srid-pa ye-sangs) he had already attained buddhahood under the name Salwa (Gsal-ba, meaning "clarity"), as the second of three brothers — his elder brother Dagpa (Dag pa, "purity") reincarnated as Tönpa Togyal Yekhyen (Ston-pa Gto-rgyal ye-mkhyen), the Bön buddha of the past, while his younger brother Shepa (Shes pa, "wisdom") will become Thangma Medron (Ston-pa Thang-ma Me-sgron), the future buddha. He also emanated as Chime Tsugphü ('Chi-med gtsug-phud) and taught the sage Tagla Mebar (Stag-la me-'bar). (Source: yungdrungbon.co.uk, introduction to the Twelve Deeds (《十二事业》), verified live, https://yungdrungbon.co.uk/?p=2853)

1.2 Birth: 16017 BCE, Olmo Lungring

Birthplace. Olmo Lungring ('Ol-mo lung-ring), a sacred land in the central region of the great country of Tagzig (Rtag-gzigs/Stag-gzig), west of Tibet. His birth palace was the southern palace of Barpo Sogye (Bar-po so-brgyad) at the southern foot of the nine-tiered Yungdrung mountain (Yungdrung Gutseg). Tradition describes Olmo Lungring as shaped like an eight-petaled lotus, with the nine-tiered Yungdrung mountain at its center and four great rivers flowing thence into the world. (Source: yungdrungbon.co.uk, verified live; tourtraveltibet.com, index)

Birth date (traditional Bön chronology). At dawn on the fifteenth day of the first month of spring (the Fire-Tiger month, me-stag-gi zla-ba), in the Wood-Male-Rat year (shing pho byi ba), under the asterism Gyal (rGyal, "victory"); according to the traditional Bön chronology (Bstan-rtsis) this was 16017 BCE. His birthday is celebrated in the twelfth Tibetan month (roughly January–February in the Gregorian calendar) because the ancient Zhangzhung and ancient Tibetan calendars ran one month ahead of the current Mongolian-style calendar (hor-rtsis/hor-zla, introduced in the 13th century by Sakya Phagpa). (Source: yungdrungbon.co.uk, verified live)

1.3 The Twelve Deeds (Mdzad-chen bcu-gnyis)

• 1. Birth: after a year of childhood play he ascended the throne as King Murigthrul (Dmu-rigs 'phrul).
• 2. Teaching the Dharma: over twelve years he taught the "Nine Successive Vehicles" (theg-pa rim-dgu'i bon) — the four causal vehicles of Bön: the Phywa-gshen vehicle (Phywa-gshen theg-pa), the Snang-gshen vehicle (Snang-gshen theg-pa), the 'Phrul-gshen vehicle ('Phrul-gshen theg-pa), and the Srid-gshen vehicle (Srid-gshen theg-pa); the five fruitional vehicles: the Ge-bsnyen vehicle (Dge-bsnyen theg-pa), the Drang-srong vehicle (Drang-srong theg-pa), the A-dkar vehicle (A-dkar theg-pa), the Ye-gshen vehicle (Ye-gshen theg-pa), and the unsurpassed vehicle / Great Perfection (Bla-med theg-pa/Rdzogs-chen); he also transmitted the "Four Portals and Five Treasuries" (Sgo-bzhi mdzod-lnga) and the Great Powerful Kālacakra Tantra (dBang ldan dus kyi 'khorlo'i rgyud, transmitted to the earth-lords, sa bdag).
• 3.–4. Taming and guiding beings (manifesting countless emanations to liberate the beings of the three realms and six destinies).
• 5. Marriage: he married 360 emanations of worldly goddesses, and his principal consort Hos-za Gyal-med-ma, an emanation of Yum-chen 'Byams-ma.
• 6. Manifesting offspring: eight sons and two daughters (see 1.5).
• 7. Subduing demons: the demon king Khyab-pa Lag-ring ("the All-Pervading Long-Armed Demon") abducted his youngest daughter; Shenrab went to rescue her and converted the demon's two sons; later, when seven horses were stolen to Kong-po in Tibet, Shenrab shot an arrow through a mountain, opening the "arrow-path" (mda'-lam) tunnel, and subdued the demons at Kong-po Bon-ri; the demon king's father Kong-rje dkar-po offered his daughter Kong-za khri-lcam as a consort; the demons burned the scriptural treasury, but from the ashes appeared the "five heroic syllables" (dpa'-bo 'bru-lnga), which transformed into 368 letters (in Zhangzhung Marchen script), and the teaching revived and spread throughout the world.
• 8. Victory: his disciple Gya Kong-rtse 'Thrul-gyi rgyal-po built a great temple on an island in Lake Mu-khyud-dal; Shenrab manifested as Nam-par Gyal-wa (Rnam-par rgyal-ba, "the All-Victorious") and led 5,500 Yungdrung warriors (g.yung-drung sems-dpa') to subdue the obstructing spirits.
• 9. Renunciation: at 31 divine years (one account says age 31) he abandoned the throne and went forth, manifesting as the monk Ston-pa Khri-gtsug rgyal-ba. According to one account, the earlier years ran: married at 16, battled demons at 18, traveled to China and India to teach at 20, and began preaching at 26. (Source: simple.wikipedia.org, index; yungdrungbon.co.uk, verified live)
• 10.–11. Retreat and realization.
• 12. Realization/Nirvana (Rnam-par grub-pa'i mdzad-pa): at the nine-tiered Yungdrung mountain he manifested illness and moved to the palace of Khri-smon rgyal-bzhed; his eldest son Gto-bu 'bum-sangs performed the gto ritual while his second son Dpyad-bu khri-shes diagnosed his pulse and administered treatment; he first manifested recovery to demonstrate conventional truth (kun-rdzob bden-pa), then manifested illness again and transmitted the liberation teachings for the moment of death; in the year of his 82nd divine year, on the thirtieth day of the first winter month, in the Water-Female-Rabbit year (i.e. 7817 BCE), he manifested nirvana (mya-ngan las-'das-pa), displaying countless auspicious signs; his body was cremated, the "Eighteen-Deed Offering Ritual" (Cho-ga 'phrin-las bco-brgyad) was performed, and his relics were distributed among humans, gods (lha), and nāgas (klu) as objects of refuge. (Source: yungdrungbon.co.uk, verified live)

According to the systematic study of the gZer mig (《赛米》): the demon king once invited him to enter nirvana early, but Shenrab refused and postponed his passing by two years (from 80 to 82), in order to tame the demon of death and transform Khyab-pa's evil mind; the episode closely parallels the story in the Lalitavistara (rGya cher rol pa, 《普曜经》) in which the Buddha refuses the demon Māra's invitation to enter nirvana — except that Shenrab lived to 82, two years longer than the Buddha. (Source: Kalsang Norbu Gurung, The Emergence of a Myth (2011), index, https://scholarlypublications.universiteitleiden.nl/access/item:2959975/download)

1.4 Lineage: The dMu Royal House

Clan. Shenrab belonged to the royal dMu lineage — "the lineage of fathers and forefathers is all of the dMu clan" (yab myes gdung rgyud dmu'i rigs) — also called the Dmu-rigs 'phrul royal house and the Dmu-gshen royal house. English popular sources say his "Shen" designates his priestly clan, connected with the spiritual heritage of ancient Zhangzhung. (Source: Gurung's thesis, citing mDo 'dus; yungdrungbon.co.uk, verified live; tourtraveltibet.com, index)

Father. Gyalbon Thökar (Thodkar): his full name appears in the various texts as Mi-bon lha-bon rgyal-bon thod-dkar. The gZer mig (p. 15) gives mi bon lha bon yo bon rgyal bon thod dkar, with an extra "yo bon" of unclear meaning (Gurung conjectures it may correspond to the yo phyi in his mother's name). The mDo 'dus addresses him in the form "father-forefather" (yab myes), indicating that he was both Shenrab's father and, in generational terms, the "grandfather" of Shenrab's sons (and the spiritual grandfather of the faithful). (Source: Gurung's thesis, index; yungdrungbon.co.uk, verified live)

Mother. Yochi Gyalzhedma (Yochyi Gyalzhed Ma), full name Ma-phyi lha-phyi yo-phyi rgyal-bzhad-ma. (Source: yungdrungbon.co.uk, verified live)

Grandfather. According to the mDo 'dus (pp. 41–42, 55), Shenrab's grandfather was the dMu king Lamgyi Thempake (Tibetan: dmu rgyal lan gyi them pa skas), who resided at the Barpo Sogye palace in the land of Olmo; his grandmother was the phya-clan princess Ngangdrangma (phya za ngang 'brang ma), granddaughter of Matsun Trulmo. Their son was Thökar; Thökar married Gyalzhema and fathered nine sons and one daughter, of whom Shenrab was the youngest, and he later became king. (Source: Gurung's thesis, citing mDo 'dus, index)

Still earlier generations (expansions in later texts). The mDo 'dus records only two generations of male ancestors; later texts extend the line ever upward. According to the Dul ba gling grags (pp. 118–119): the fifth-generation ancestor (the founder) Shenlha Odkar — a brownish-red light from his heart fell upon the brown dMu mountain and took human form as Muchug Kyirzhon, who married Lhaza Gangdrag; the great-great-grandfather Mutsenzhergyi Gyalpo, who married the phya woman Gyalmo; the great-grandfather Mutsen Zalpo, who married Rimnam Zalmo; the grandfather, the dMu king Langyi Themke, who married Lhaza Trulmo; and the father, the dMu king Thökar — Shenrab's father. (Source: Gurung's thesis, citing Dul ba gling grags, index)

Note on variant accounts: the texts differ on the mother's name (Yochi Gyalzhedma / Gyalzhema / Gyalshema rGyal bzhad ma; ybmcs.org also gives "Zangpa Ringum"); the mDo 'dus's account of Thökar having nine sons and one daughter, Shenrab being the youngest, stands alongside the common "eight sons of Shenrab" account — reflecting textual layering.

1.5 Offspring: Eight Sons and Two Daughters

Wives. According to the various chapters of the gZer mig (the "Table of Shenrab Miwo's Wives and Children" in Gurung's thesis), Shenrab had five wives: Princess Gyalmay of Hos (the principal consort Hos-za Gyal-med-ma of the Twelve Deeds, an emanation of the Loving Mother); Princess Thangmo; Lhaza Gungdrug; Seza Ngangdrug; and Princess Tricham of Kongpo (the Kong-za khri-lcam offered by the demon king's father). (Source: Gurung's thesis, citing gZer mig chs. vi, ix, x, xii, xxiii, xxiv, index; yungdrungbon.co.uk, the fifth and seventh of the Twelve Deeds, verified live)

Children. The common account gives eight sons and two daughters: the eight sons were Tobu Bumsang (Gto-bu 'bum-sangs, who performed the gto ritual when his father manifested illness), Chebu Trishe (Dpyad-bu khri-shes, heir of Bön medicine, who diagnosed his father's pulse and treated him), Lungden Salwa (Lung-ldan gsal-ba), Gyudren Dronma (Brgyud-'dren sgron-ma), Kongtsa Wangden (Kong-tsha dbang-ldan), Kongtsa Thrulbu (Kong-tsha 'phrul-bu), Woldrug Thangpo ('Ol-drug thang-po), and the regent Mucho Demdrug (Gdung-sob Mu-cho ldem-drug); the two daughters were Shenza Nechen (Gshen-za ne-chen) and Shenza Nechung (Gshen-za ne-chung) — the younger daughter Nechung was once abducted by the demon king Khyab-pa Lag-ring and later rescued by her father. (Source: yungdrungbon.co.uk, verified live)

Children by mother (per the gZer mig table): the Hos consort bore Tobu Bumsang, Chebu Trishe, and the daughter Shenza Nechen; the Thangmo consort bore Lungdren, Gyudren, and the daughter Shen Khyeuchung; Lhaza Gungdrug bore Mucho Demdrug; Seza Ngangdrug bore Legpa Oldrug Thangpo; and the Kongpo Tricham bore Kongtsha (i.e. Kongtsa Yungdrung Wangden, whose birthday the official Bön site still celebrates). (Source: Gurung's thesis, index; yungdrungbon.co.uk tag archive, index)

Later transmission. Bön tradition holds that Shenrab manifested offspring in order to continue the Dmu-gshen royal bloodline and secure the transmission of Yungdrung Bön; despite calamities over thousands of years, his bloodline survives in Ü-Tsang to this day, and the family is known as Gyal-ba gshen-tshang. (Source: yungdrungbon.co.uk, verified live)

Note on variant accounts: the sources differ on the number of children — the eight-son account (common) and an eleven-son account (Nyima Tenzin's work calls Mucho Demdrug the eighth of eleven sons, cited in the hal.science paper, index); Gurung's table lists only seven sons by name (one son's name does not appear in the publicly available excerpts).

1.6 Disciples

The most renowned disciples:

• 1. Mucho Demdrug (Mu-cho ldem-drug) — "the foremost among the disciples" (the foremost), Shenrab's son and regent (gdung sob), who took over and propagated all the teachings after the "teaching of the body" came to an end; the "Six Great Translators" were trained under him. (Source: yumpu.com reprint of introductory Bön literature, p. 15, index; yungdrungbon.co.uk, verified live)
• 2. The Six Great Translators (Six Great Translators / Six Ornaments) — under Mucho Demdrug, they translated the Bön scriptures into six languages and each returned to their homeland to propagate them: Mutsha Trahe (dMu-tsha Tra-he, a native of Tazig), Trithog Pasha (Khrithog sPa-tsha, a native of Zhangzhung), Hulu Paleg (Hu-lu sPa-legs, a native of Sumpa, east of Zhangzhung), Lhadag Ngagdrol (Lha-bdags sNgags-grol, an Indian), Legtang Mangpo (Legs-tang rMang-po, a Chinese), Sertog Chejam (gSer-thog lCe-byams, a native of Phrom/Bolor-Mongolia). The earliest scriptures were first translated into Zhangzhung, then into Tibetan; although today's Bön Kangyur is written in Tibetan, the older portions still retain Zhangzhung titles and even whole passages in Zhangzhung. (Sources: yumpu.com, index; manjushri.com, index; tourtraveltibet.com, index)
• 3. Malo and Yulo — when Shenrab emanated from the celestial realm at the foot of Mount Meru, these "two closest disciples" attended him. (Source: ybmcs.org, index)
• 4. Gya Kongtse Thrulgyi Gyalpo (Gya Kong-rtse 'Thrul-gyi rgyal-po) — the "prince endowed with qualities," who built a great temple in the middle of Lake Mukhyud Dal; in the astrological lineage, the "Wise King Kongtse" propagated the 360 kinds of calculation in Tibet. Most researchers regard him as the Bön-ized image of Confucius. (Source: yungdrungbon.co.uk, verified live; hal.science, index)
• 5. Takla Mebar (Stag-la me-'bar) — the sage, who received teachings from Shenrab's emanation Chime Tsugphü; the English Wikipedia article on Bön lists him as a key figure among Shenrab's disciples. (Source: yungdrungbon.co.uk, verified live; https://en.wikipedia.org/wiki/Bön, index)
• 6. Khyabpa Lagring (Khyab-pa Lag-ring) — originally a demon king who spent his life creating obstacles; after being subdued he became a disciple; the Hindupedia-line narrative calls him the "leading disciple." Variant noted: this differs from the mainstream Bön account of Mucho Demdrug as chief disciple/regent; Hindupedia is a weak source, and both are recorded here for reference. (Sources: hindupedia.com, index; manjushri.com, index)

1.7 Accomplishments: religion, culture, medicine, astrology, and the five sciences

Religion. He founded Yungdrung Bön ("Eternal Bön"); taught the Nine Successive Vehicles, the Four Portals and Five Treasuries, and the Kālacakra class of tantras; opened the Dzogchen lineage — transmitted through the emanation Chime Tsugphü to the sage Takla Mebar, continuing to this day as the Zhangzhung Nyengyü Dzogchen; and established the Bön Kangyur system. The essence of his teaching is condensed into the "Four Wheels of Bön" (Bon 'khor tshig bzhi). (Sources: yungdrungbon.co.uk, verified live; English Wikipedia, Bön, index)

Culture. The Bön tradition credits him with creating Zhangzhung culture — including crafts, language, script, medicine, astronomy, and profound spiritual teachings; some devotees even regard him as the source of world culture and the root of Buddhism; Bön narrative holds that he put an end to primitive animal blood sacrifice. (Sources: simple.wikipedia.org, index; hindupedia.com, index)

Medicine. The Bön tradition regards him and his son Chebu Trishe as the source of Tibetan medicine; the History of the Four Medical Tantras (gso rig lo rgyus, Beijing 2004) also records this account. When he manifested illness before his passing, it was Chebu Trishe who took his pulse and administered treatment. (Sources: globalsecurity.org, citing Tibetan medical histories, index; yungdrungbon.co.uk, verified live)

Astrology and calendrical science. He taught the Kālacakra teachings; the "four sons of science" respectively preside over divination (mo), calculation (rtsis), religious law (chos), and the four gates of medicine; his Kālacakra teachings are regarded as the basis of the "360 kinds of calculation," transmitted to Tibet by the translator Legtang Mangpo and propagated by the "Wise King Kongtse"; the Bön bstan-rtsis chronological system is likewise traced to Shenrab. (Source: hal.science, The Assimilation of Astrology in the Tibetan Bon Religion, index)

The five sciences. Popular sources credit him with "teaching the five sciences," encompassing logic, language, medicine, arts and crafts, and Buddhist philosophy, both worldly and transcendent; from an early age he was renowned for mastery of logic, astronomy, medicine, grammar, phonetics, and ritual. (Source: tourtraveltibet.com, index)

1.8 The Bön chronology: divine years, the three phases of the teaching, and which year this is

The traditional Bön chronology (bstan-rtsis) takes Shenrab's birth as its starting point. The key conversion: 1 divine year (gshen-lo) = 100 human years; Shenrab lived 82 divine years = 8,200 human years. Hence: birth in 16017 BCE (wood-male-mouse year); nirvana in 16017 − 8200 = 7817 BCE (water-female-rabbit year, the thirtieth day of the first winter month). The teaching is divided into three phases: the "teaching of the body" (sku-yi bstan-pa); the "teaching of speech" (gsungs-gi bstan-pa), beginning 10,000 years after Shenrab's birth; and the "teaching of mind" (thugs-kyi bstan-pa), which will begin in the year 3983 and end in 13983, after which the new buddha Thangma Medron will appear and inaugurate a new round of Bön. (Source: yungdrungbon.co.uk, verified live)

By this standard chronology: February 2026 is the 18,043rd anniversary of Shenrab's birth (2026 + 16017 = 18043); November 2025 is the 9,842nd anniversary of his nirvana (2025 + 7817 = 9842). The Foundation for the Preservation of Yungdrung Bön holds commemorations according to these anniversaries. (Source: https://yungdrungbon.co.uk/tag/tonpa-shenrab-miwo/ archive, index)

Important note: this is only an "anniversary" reckoning counted from Shenrab, not an era name in everyday use — Bön daily calendrics still use the sexagenary cycle (e.g., 2026 is a fire-horse year) and Tibetan calendar months; and the Bön New Year follows the old Zhangzhung/old Tibetan agricultural new year (so nam lo gsar), celebrated in the twelfth Hor month (about January in the Gregorian calendar), one month earlier than the current Tibetan calendar. (Sources: yungdrungbon.co.uk, verified live; hal.science, index)

1.9 Variant dates within the tradition

Even within the Bön tradition, there is more than one account of Shenrab's dates: the popular "18,000 years ago" (ybmcs.org: "According to the Bön canon, his birth dates 18,000 years ago"; Nyima Dakpa Rinpoche, Opening the Door to Bön: "More than 18,000 years have passed"; English Wikipedia, Zhangzhung article: "lived some 18,000 years ago") — a rounding of 16017 BCE; Alexander Berzin's Bon and Tibetan Buddhism cites another traditional round figure, "thirty thousand years ago" ("According to the Bon tradition itself… lived thirty thousand years ago"); Tsultrim Gyaltsen (in an 1804 work) used the same divine-year × 100 conversion but from a different starting point, arriving at birth in 20995 BCE and death in 12795 BCE, about 5,000 years earlier than the standard account; and the Menri Monastery commemoration of December 26, 2019 was billed as the "9836th Death Anniversary" — i.e., 2019 + 7817 = 9836, counted by the standard chronology. (Sources: as cited above, index / verified live)

Time Scale Two: Textual History — When the Texts Actually Appeared

The following reflects modern scholarly views. This time scale does not measure "when Shenrab lived," but "when the stories about Shenrab were written down and compiled into the form we know today."

2.1 The True Dates of the Three Biographies: 10th–11th-Century Treasure Texts, a 14th-Century Transcription

Bön tradition attributes the main sources for Shenrab's life to three biographies: the mDo 'dus (mDo 'dus / mdo 'dus), the gZer mig (gZer mig / gzer mig), and the gZi brjid (gZi brjid / gzi brjid). But according to modern scholarly dating:

• The mDo 'dus and gZer mig are regarded by Bön as treasure texts (gter ma) revealed in the 10th–11th centuries;
• The gZi brjid is an oral transmission (snyan brgyud) recorded by Loden Nyingpo in the 14th century.

Hence, "there is no historical source earlier than the 10th century that can establish his historicity, his dates of birth and death, his ethnic origin, his deeds, or the authenticity of the many texts attributed to him" (Samten Karmay's thesis, see https://en.wikipedia.org/wiki/Tonpa_Shenrab_Miwoche, index).

In other words: on the scale of textual history, "Shenrab" as a biographical figure first appeared in the 10th–11th centuries and was finalized in the 14th — some seventeen thousand years after the 16017 BCE claimed by tradition.

2.2 Layered Accretion: The Story Grew Over Centuries

Kalsang Norbu Gurung's doctoral dissertation (Leiden, 2011), The Emergence of a Myth, demonstrates through a section-by-section comparison of the mDo 'dus and the gZer mig that the gZer mig's stories are an expansion and adaptation of the mDo 'dus (the gZer mig being the later text); later works kept adding names to Shenrab's ancestral lineage — the mDo 'dus records only two generations of male ancestors, the Dul ba gling grags already extends back to a fifth-generation ancestor, and the 20th-century Bön histories of Sharza Rinpoche continued the embellishment. This shows that Shenrab's life narrative accreted and was elaborated over several centuries, rather than being written down once as reliable history. (Source: Gurung's dissertation, index, https://scholarlypublications.universiteitleiden.nl/access/item:2959975/download)

Traces of this textual accretion are visible everywhere in the first time scale: Thökar's "nine sons and one daughter, Shenrab the youngest" coexists with the "eight sons of Shenrab"; the mother's name varies between recensions; the same personal name can carry up to four distinct identities across different texts (Gurung notes that one named "Kongtsha" appears as: ① Shenrab's son, ② the son of the dMu king Thunthun Namé, ③ one of the thirty-three bonpos, and ④ an emanation of Shenrab subduing the hungry-ghost realm) — "one name, multiple identities" is a common feature of Bön literature.

Gurung further notes that the bon in the father's name (as in mi bon, lha bon, rgyal bon) is in fact an abbreviation of bon po (bon priest), meaning "bon priest of men, bon priest of gods, bon priest of kings"; and that the epithet "father-grandfather" (yab myes) shows the figure of Thökar to have been compounded from various "bon priest" titles found in Old Tibetan sources. The continual addition of names and spouses for ancestors in later works is precisely evidence of the ongoing sacralization and genealogization of Shenrab's life narrative, and cannot be treated as reliable history.

2.3 Textual Sources of Each Date Variant: Every Number Is the Product of a Textual Tradition

The various dates listed under the first time scale each have their own provenance on the scale of textual history — they are not measurements of a single historical fact, but constructions of different textual traditions:

• Birth 16017 BCE, nirvana 7817 BCE: the conclusion of the standard Bön bstan-rtsis (Wood-Male-Rat year plus divine-year conversion: 82 × 100 = 8200). The 18,039th birth anniversary in 2022, the 18,043rd in 2026, and the 9,842nd nirvana anniversary in 2025 are all calculated from this. But it has not been established in publicly available sources which calendrical scholar first computed the precise figure "16017" (rather than a round number) and in which work; only the method is known to derive from the Bön calendrical tradition.
• Birth 20995 BCE, death 12795 BCE: the calculation of Tsultrim Gyaltsen (in his 1804 work) — born 22,799 years before his time, with death year = 20995 − 8200. The same divine-year × 100 conversion, but from a different starting point, about 5,000 years earlier than the standard account. (Source: cited from English Wikipedia, index)
• Birth 1917 BCE, nirvana 1835 BCE: the dating of Chögyal Namkhai Norbu in Drung, Deu and Bön, pp. 156–158, reckoned in 82 human years (rather than divine years). Mainstream Bön scholars (Yongdzin Lopön Tenzin Namdak, Khenpo Tenpa Yungdrung, and others) consider this too late and do not accept it. (Source: cited from yungdrungbon.co.uk, verified live)
• Birth 1957 BCE: the position of the Tibetan medical historian Shenton Yeshe Lodo (gshen ston ye shes blo gro), found in the gso rig lo rgyus (History of the Four Medical Tantras, Beijing 2004). (Source: cited from globalsecurity.org, index)
• Contemporary with Śākyamuni (c. 6th century BCE): Zurkhar Lodo Gyalpo (zur mkhar blo gros rgyal po) writes in his Encyclopedic Outline that "when Śākyamuni descended into the world, Shenrab Miwoche came to Purang" — an analogy drawn from the Buddha's dates. (Source: cited from globalsecurity.org, index)
• 11th–7th centuries BCE; unifying Tibet and founding the Zhangzhung kingdom in the 6th century BCE; a Zhangzhung prince of the 4th century BCE: compromise versions from some "historicizing" narratives, without confirmation. (Source: per Berzin, cited from English Wikipedia, index)

Summary: none of the specific years above are anything more than the religious-chronological constructions of particular textual traditions; there is no contemporaneous archaeological or textual evidence to verify them, and modern scholarship treats none of these numbers as historical dates.

2.4 The Formation of Bön as a Self-Conscious Religious System

Some scholars hold that the Shenrab legends borrowed from the life of Śākyamuni and that Bön's philosophical system derives from Indian Buddhist thought; Bönpos maintain the opposite — that Buddhism borrowed from Bön. (Source: degruyter, The Bon Religion: Contested Assertions, index)

The consensus of modern scholarship is that Bön as a self-conscious religious system took shape in the 10th–11th centuries under Buddhist influence (John Powers and others, see the English Wikipedia article on Bön, index); but Bön also preserves some genuinely ancient, pre-Buddhist elements (Geoffrey Samuel, David Snellgrove, ibid.).

Scholarly note (on the "accomplishments" of 1.7): the above narratives of "founding Bön, creating writing, transmitting medicine and calendrical science" all belong to Bön's internal origin-attribution narratives. The earliest physical evidence for Zhangzhung writing dates far later than the legendary era; as for the Bön claim that the Tibetan script derives from the Zhangzhung alphabet, modern scholars confirm that Tibetan derives from a North Indian script (see https://en.wikipedia.org/wiki/Zhang_Zhung_culture, index).

2.5 Etymology of the Name

Shenrab Miwo is a Zhangzhung-language name, examined as equivalent to the Tibetan shes rgya sems dpa' ("bodhisattva"). (Source: English Wikipedia, index)

Time Scale Three: World Archaeology — The Material World Around 16000 BCE

This scale measures "the actual living conditions of human beings at the time." Around 16000 BCE (roughly 18,000 years before the present) the world stood at the end of the Last Glacial Maximum (c. 26,500–19,000 BP), with glaciers beginning to retreat: sea levels were more than 100 meters lower than today, the Bering land bridge existed, and megafauna — mammoths, woolly rhinoceroses, giant ground sloths — still survived. At this time there was no agriculture, no cities, and no writing anywhere on earth; any talk of "civilization" is fiction. Pottery did appear at a few sites in East Asia, but it was made by hunter-gatherers and had nothing to do with agriculture.

Western Asia (the Near East). The Epipalaeolithic: the Levant's "Geometric Kebaran" culture (19,000–15,000 BP); the Zarzian culture of Mesopotamia, the Zagros, and the Iranian plateau. The inhabitants were mobile/semi-sedentary hunter-gatherers using microliths, gathering wild grasses and developing grinding stones — the beginnings of economic intensification, but with no domesticated plants or animals, and no pottery. Agriculture (the Neolithic Revolution) would not appear in the Fertile Crescent until around 10000 BCE, still some 6,000 years away. (Source: https://en.wikipedia.org/wiki/Epipalaeolithic_Near_East, index)

Europe. The transition from the Solutrean culture (22,000–17,000 BP) to the Magdalenian culture (17,000–12,000 BP); the Lascaux cave paintings around 17,000 BP; the bone-and-antler art of the Dordogne. The inhabitants were hunter-gatherers (hunting deer, horses, wild cattle, and mammoths), making finely pressure-flaked stone blades, bone needles, spear-throwers, cave paintings, and carvings, living in small mobile bands. This was the peak of Upper Paleolithic art in Europe, but there was no settled agriculture and no writing. (Source: https://en.wikipedia.org/wiki/Upper_Paleolithic, index)

East Asia. China: Late Paleolithic cultures; the Xianren Cave pottery of Jiangxi, 20,000–19,000 BP (among the earliest pottery in the world); Japan's Paleolithic, with pottery from the Ōdai Yamamoto I site at 16,500 BP (14,500 BCE), made by nomadic hunter-gatherers. Pottery had appeared, but it was made by hunter-gatherers for cooking, unrelated to agriculture; there were no settled villages. Agriculture in China (the domestication of millet and rice) would not appear until around 10000–8000 BCE; sedentism in Japan's Jōmon period came even later. (Source: https://en.wikipedia.org/wiki/Xianren_Cave, https://en.wikipedia.org/wiki/Ōdai_Yamamoto_I_Site, index)

South Asia. India's Late Paleolithic (c. 100,000–10,000 BP); the Bhimbetka rock shelters of Madhya Pradesh (rock art from about 30,000 BCE); the Belan site in Uttar Pradesh, 18,000–17,000 BP. The inhabitants were hunter-gatherers using stone blades, scrapers, and microliths, making rock art. Agriculture (Mehrgarh) would not appear until around 7000 BCE; the Indus civilization came later still, after about 2600 BCE. (Source: https://en.wikipedia.org/wiki/South_Asian_Stone_Age, index)

The Americas. The pre-Clovis period: the White Sands human footprints of New Mexico, 23,000–21,000 BP (reported in a 2021 paper in Science, confirmed by a third independent dating in 2025); humans coexisted with mammoths, giant ground sloths, and dire wolves. At this time the Americas held only tiny groups of mobile hunter-gatherers, with no stone-tool remains and no settlements — only the footprints as evidence; the Clovis culture (c. 13,000 BP) had not yet appeared. Scholars had long held that humans entered the Americas no earlier than 16,000 BP; the White Sands evidence pushes that date back. In any case, at this time the Americas held only sparse hunter-gatherers. (Source: https://news.arizona.edu/news/earliest-evidence-human-activity-found-americas, index)

Africa. Later Stone Age hunter-gatherers; the Ishango site on the Democratic Republic of Congo/Uganda border (human occupation 20,000–5,000 BC); the Ishango bone, about 20,000 BP (18,000–20,000 BCE), its notches interpreted as tally marks; Shum Laka in West Africa, >32,000 BP; the Ogolian arid period (20,000–12,000 BP). The inhabitants lived by hunting, fishing, and gathering, using bone harpoons and microliths, in small groups. Agriculture would not appear independently in Africa until after about 4000 BCE; the claim that "the Ishango bone was a mathematical tool" is an interpretive hypothesis, not established fact. (Source: https://en.wikipedia.org/wiki/Ishango_bone, https://en.wikipedia.org/wiki/Prehistoric_Central_Africa, index)

The Tibetan Plateau itself. The Nwya Devu site in northern Tibet (4,600 m elevation): its second stratigraphic layer, 25,000–18,000 BP (exactly the Last Glacial Maximum), shows human activity, with workshops producing stone blades and scrapers. Around 16000 BCE the plateau did have humans — but they were high-altitude mobile hunter-gatherers (seasonal users, likely hunting Tibetan antelope and wild yak), using flaked stone tools. There were no material conditions for any kingdom, palace, writing, or the propagation of a "doctrine"; permanent settlement in the plateau's interior would not come until about 13,000–4,000 BP (the first layer at Nwya Devu). (Source: https://en.wikipedia.org/wiki/Nwya_Devu, index; Science 2018, Zhang et al., as reported via sciencenews.org, index)

The comparison's conclusion: If Bön tradition places Shenrab around 16000 BCE, then narratives of "palaces, kingdoms, writing, medicine, astronomy, and wars against demons" are entirely incompatible with the global archaeological record — at that time all of humanity (including the Tibetan Plateau) lived in a hunting-and-gathering stage with no writing, no metals, and no agriculture. This is precisely why modern scholarship does not treat the Bön chronological figures as historical dates.

A Side-by-Side View of the Three Scales

Placing the same founder within the three time scales side by side gives the following:

• The traditional scale: Shenrab was born in 16017 BCE (the standard bstan-rtsis), lived 82 divine years (8,200 human years), and entered nirvana in 7817 BCE. There were kingdoms, palaces, writing, and the Nine Vehicles teachings. This scale of time begins in faith and ends in faith.
• The textual-history scale: The earliest written biographies of Shenrab appeared in the 10th–11th centuries (as terma treasures) and took their fixed form in the 14th century (the gZi brjid dictation); the stories accumulated and were embellished over several centuries; the various date figures (20995 BCE, 1917 BCE, 1957 BCE, and so on) each come from a different textual tradition. This scale of time begins with the people who wrote the stories down.
• The world-archaeology scale: Around 16000 BCE, the whole world consisted of hunter-gatherers, with no agriculture, no cities, and no writing; the Nwya Devu site on the Tibetan Plateau proves that the plateau did have humans at the time — but they were Paleolithic hunters. This scale of time begins with the stone tools in the strata.

Each of the three scales stands on its own; they cannot be converted into one another. Tradition answers "who the founder was," textual history answers "when the stories were written down," and archaeology answers "how human beings lived at the time" — three different questions, and naturally three different answers.

Unresolved Items (Stated As They Are)

• 1. A more detailed genealogy above the great-grandfather's generation: In the publicly available sources, the mDo 'dus records only two generations — grandfather and father; the Dul ba gling grags extends upward to the fifth-generation ancestor Muchug Kyirzhon. Names further up (such as the first ancestor's parents) could not be found in publicly available English- or Chinese-language sources.
• 2. The name of one of the eight sons listed in the gZer mig: The table of Shenrab Miwo's wives and children in Gurung's dissertation shows only seven sons' names in the publicly available excerpts (Tobu Bumsang, Chebu Trishe, Lungdren, Gyudren, Mucho Demdrug, Legpa Oldrug Thangpo, Kongtsha); the eighth son's name could not be found (the original table may record it, but it is not visible through public channels).
• 3. The original Tibetan spellings of wives' names such as "Thangmo": The publicly available excerpts give only variant English transliterations, with no consistent Wylie spelling; not confirmed.
• 4. The original source that first calculated the precise figure "16017": It is confirmed as the standard conclusion of the Bön bstan-rtsis (Wood-Male-Rat year plus the divine-year conversion), but which calendrical scholar first computed 16017 (rather than a round figure), and in which work, could not be found in publicly available sources; it is only known that Tsultrim Gyaltsen (1804) used the same method to arrive at a different figure, 20995 BCE.
• 5. The exact place of Shenrab's nirvana: Tradition says only that he manifested it at the Khri-smon rgyal-bzhed palace; no further information on that palace's location has been found.

Sources

• yungdrungbon.co.uk (the official Bön website): introduction to the Twelve Deeds https://yungdrungbon.co.uk/?p=2853; the Tonpa Shenrab Miwo tag archive https://yungdrungbon.co.uk/tag/tonpa-shenrab-miwo/ (verified live / index)
• Kalsang Norbu Gurung, The Emergence of a Myth (Leiden University doctoral dissertation, 2011): https://scholarlypublications.universiteitleiden.nl/access/item:2959975/download (index)
• English Wikipedia: Tonpa Shenrab Miwoche https://en.wikipedia.org/wiki/Tonpa_Shenrab_Miwoche; Bön https://en.wikipedia.org/wiki/Bön; Zhangzhung culture https://en.wikipedia.org/wiki/Zhang_Zhung_culture (index)
• ybmcs.org (Menri Monastery North America center): the "18,000 years ago" dating of Shenrab's birth; the 2019 "9836th Death Anniversary" commemoration (index)
• Nyima Dakpa Rinpoche, Opening the Door to Bön: "More than 18,000 years have passed" (index)
• Alexander Berzin, Bon and Tibetan Buddhism: the "thirty thousand years ago" figure (republished via tibetanbuddhistencyclopedia, index)
• Chögyal Namkhai Norbu, Drung, Deu and Bön, pp. 156–158: the 1917 BCE dating (cited via yungdrungbon.co.uk, verified live)
• The Four Medical Tantras: A History (gso rig lo rgyus, Beijing 2004): Shenton Yeshe Lodo's 1957 BCE dating (cited via globalsecurity.org, index)
• Zurkhar Lodo Gyalpo, Encyclopedic Outline: the "contemporary with Śākyamuni" dating (cited via globalsecurity.org, index)
• hal.science, The Assimilation of Astrology in the Tibetan Bon Religion: the calendrical transmission and the "Kongtse is Confucius" thesis; the Nyima Tenzin eleven-sons citation (index)
• degruyter, The Bon Religion: Contested Assertions: the Bön–Buddhist relationship debate (index)
• simple.wikipedia.org / tourstraveltibet.com / tourtraveltibet.com / hindupedia.com / manjushri.com / yumpu.com: popular introductory materials on Bön (index; Hindupedia is a weak source, as noted)
• Archaeological comparisons: Epipalaeolithic Near East https://en.wikipedia.org/wiki/Epipalaeolithic_Near_East; Upper Paleolithic https://en.wikipedia.org/wiki/Upper_Paleolithic; Xianren Cave https://en.wikipedia.org/wiki/Xianren_Cave; Ōdai Yamamoto I https://en.wikipedia.org/wiki/Ōdai_Yamamoto_I_Site; South Asian Stone Age https://en.wikipedia.org/wiki/South_Asian_Stone_Age; White Sands https://news.arizona.edu/news/earliest-evidence-human-activity-found-americas; Ishango bone https://en.wikipedia.org/wiki/Ishango_bone; Prehistoric Central Africa https://en.wikipedia.org/wiki/Prehistoric_Central_Africa; Nwya Devu https://en.wikipedia.org/wiki/Nwya_Devu (index)

End of the full text. This report strictly distinguishes "traditional Bön accounts" from "modern scholarly views"; the three time scales are presented separately, with no presupposed position and no conversion between them.