सनातन धाम Learning Centres Gyan Jyotish Panchang Yatra Vivah Pooja SSEB
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The rishis — the world's first educators

Sanatan knowledge was written down, taught in schools, argued over in commentaries, and carried away by people who came here to study. What happened afterwards is not in dispute: the knowledge kept travelling and the names of the people who produced it stopped being taught. This page puts those names back, one stream at a time.

What we claim, exactly: this is a conversion of a knowledge system, not an invention of one. We do not claim the modern discoveries built on top of it. We show what was written first, when, in which text, and on whose authority — and where we cannot prove it yet, this page says so instead of guessing.
31KNOWLEDGE STREAMS
31WITH A NAMED SANSKRIT TEXT
30WITH A NAMED PERSON
30WITH A DATE
0WITH A MODERN REFERENCE

0 of 31 streams answer all four — who, when, which text, on whose authority. The rest are being sourced at the source desk, where only a human may mark a chain verified.

Timeline & pathway By era, person and category

The timeline — who contributed what, and when

45 records, oldest first. 41 name a Sanskrit work. 0 have the manuscript itself uploaded — that library is still to come. A title is never assumed: Rishi is used only for figures the tradition identifies that way, and later mathematicians, physicians, grammarians and astronomers are shown as acharya, author or as the tradition they belong to.

Everyone Rishi / Maharishi · 2 Acharya · 4 Author · 22 Knowledge tradition · 17
c. 1500-1200 BCE or earlier Traditionally attributed

Vedic Rsi tradition - astronomy and number Rishi / Maharishi

Vedic rsis Field: Astronomy, mathematics, cosmology, language Rgveda and other Vedic Samhitas Early astronomical observation, calendrical and time concepts, numerical knowledge Source: IGNCA - the Vedas were compiled over several centuries; some Rgveda hymns are conventionally dated around 1500 BCE Manuscript not uploaded yet
Vedic period Traditionally attributed

Vedic Rsi tradition - phonetics Rishi / Maharishi

Vedic rsis Field: Linguistics, phonetics Vedic Samhitas, Pratisakhya traditions Preservation and analysis of sound, pronunciation and recitation Source: IGNCA Manuscript not uploaded yet
ancient / date disputed Disputed

Dhanvantari tradition Knowledge tradition

Surgical teaching tradition Field: Medicine, surgery No Sanskrit work recorded on this row The teaching tradition from which the Susrutasamhita was codified Source: Ministry of AYUSH Manuscript not uploaded yet
ancient / date disputed Disputed

Atreya Knowledge tradition

Teacher of the Caraka line Field: Medicine No Sanskrit work recorded on this row Teacher in the medical transmission line Source: Ministry of AYUSH Manuscript not uploaded yet
ancient / date disputed Disputed

Agnivesa Author

Author of the Agnivesa Tantra Field: Medicine Agnivesa Tantra The Carakasamhita is described as a redacted form of the Agnivesa Tantra Source: Ministry of AYUSH Manuscript not uploaded yet
c. 800-500 BCE Probable

Baudhayana tradition Knowledge tradition

Sulbasutra tradition Field: Geometry, mathematics Baudhayana Sulbasutra Geometrical construction, altar geometry, measurement Source: Vedic Heritage Portal (vedicheritage.gov.in) - identified as the oldest of the extant Sulbasutras, placed before 800 BCE Manuscript not uploaded yet
c. 800-500 BCE Probable

Apastamba tradition Knowledge tradition

Sulbasutra tradition Field: Geometry, mathematics Apastamba Sulbasutra Geometrical constructions and mathematical procedures Source: Vedic Heritage Portal (vedicheritage.gov.in) Manuscript not uploaded yet
c. 800-400 BCE Traditionally attributed

Lagadha tradition Knowledge tradition

Traditional author of the Vedanga Jyotisa Field: Astronomy, calendrics Vedanga Jyotisa Astronomical timekeeping and calendrical calculation; its stated purpose was calculating the appropriate time for Vedic ritual Source: Vedic Heritage Portal (vedicheritage.gov.in) Manuscript not uploaded yet
c. 600-400 BCE Probable

Panini Author

Grammarian Field: Linguistics, grammar Astadhyayi A highly formal grammatical system Manuscript not uploaded yet
c. 5th-4th century BCE Probable

Katyayana Author

Grammarian Field: Grammar, linguistic analysis Varttikas on Panini Critical refinement of Paninian grammar Manuscript not uploaded yet
c. 2nd century BCE Probable

Patanjali - Mahabhasya Author

Grammarian Field: Grammar Mahabhasya Systematic grammatical commentary and linguistic analysis Manuscript not uploaded yet
ancient / date disputed Disputed

Atreya-Agnivesa-Caraka tradition Knowledge tradition

Medical redaction tradition Field: Medicine Carakasamhita Internal medicine, diagnosis, pharmacology, medical theory. Not 'Caraka invented medicine' - the tradition produced the text Source: Ministry of AYUSH Manuscript not uploaded yet
ancient / date disputed Disputed

Dhanvantari-Susruta tradition Knowledge tradition

Surgical tradition Field: Surgery Susrutasamhita Surgery, anatomy, surgical instruments and procedures; codified by Susruta from the teachings of Dhanvantari Source: Ministry of AYUSH Manuscript not uploaded yet
c. 2nd century BCE - early CE / disputed Disputed

Gautama / Aksapada tradition Knowledge tradition

Nyaya tradition Field: Logic Nyayasutra Logic, inference, epistemology Manuscript not uploaded yet
c. 2nd century BCE - early CE / disputed Disputed

Kanada / Uluka tradition Knowledge tradition

Vaisesika tradition Field: Natural philosophy Vaisesikasutra Categories of reality, matter, motion and physical ontology Manuscript not uploaded yet
c. 2nd century BCE - early CE / disputed Disputed

Badarayana tradition Knowledge tradition

Vedanta tradition Field: Philosophy Brahmasutra Systematic Vedanta philosophical inquiry Manuscript not uploaded yet
c. 2nd century BCE - early CE / disputed Disputed

Jaimini Author

Mimamsa Field: Philosophy, hermeneutics Mimamsasutra Interpretation, textual reasoning, epistemology Manuscript not uploaded yet
early centuries CE / disputed Disputed

Bharata tradition Knowledge tradition

Performing arts tradition Field: Performing arts Natyasastra Theatre, drama, dance, music, performance theory Manuscript not uploaded yet
c. 3rd century CE onward Probable

Siddhanta astronomical tradition Knowledge tradition

Siddhanta astronomy Field: Astronomy, mathematics Suryasiddhanta Mathematical astronomy, celestial calculation, time and planetary computation Source: Government Sanskrit Department (sanskrit.nic.in) Manuscript not uploaded yet
c. 269 CE Probable

Yavanajataka tradition Knowledge tradition

Astronomical and astrological transmission Field: Astronomy, astrology Yavanajataka Transmission and development of astronomical and astrological methods in Sanskrit Manuscript not uploaded yet
476-550 CE Reasonably established

Aryabhata Acharya

Mathematician and astronomer Field: Mathematics, astronomy, trigonometry Aryabhatiya Arithmetic, algebraic procedures, geometry, trigonometry, planetary calculation, eclipses Source: Government Sanskrit Department (sanskrit.nic.in) Manuscript not uploaded yet
c. 505-587 CE Reasonably established

Varahamihira Author

Astronomer Field: Astronomy, astrology, natural observation Pancasiddhantika, Brhatsamhita, Brhajjataka Synthesis of astronomical traditions; astronomy, calendrics and natural phenomena Manuscript not uploaded yet
598-668 CE Reasonably established

Brahmagupta Author

Mathematician and astronomer Field: Mathematics, astronomy Brahmasphutasiddhanta Arithmetic, zero, negative numbers, algebra, geometry and astronomy Source: Government Sanskrit Department (sanskrit.nic.in) Manuscript not uploaded yet
c. 6th century CE Probable

Bhaskara I Author

Mathematician and astronomer Field: Mathematics, astronomy Aryabhatiyabhasya, Mahabhaskariya Development and explanation of Aryabhata's mathematics and astronomy Manuscript not uploaded yet
c. 6th-7th century CE Probable

Vagbhata tradition Knowledge tradition

Ayurvedic synthesis Field: Medicine Astangasangraha, Astangahrdaya Systematisation and synthesis of Ayurvedic knowledge Source: Ministry of AYUSH Manuscript not uploaded yet
c. 7th century CE Probable

Bhamaha Author

Poetician Field: Literary theory Kavyalankara Systematic study of literary form and figures Manuscript not uploaded yet
c. 7th century CE Probable

Dandin Author

Poetician Field: Literature, aesthetics Kavyadarsa Poetics and literary theory Manuscript not uploaded yet
c. 8th century CE Probable

Lalla Author

Astronomer Field: Astronomy Sisyadhivrddhidatantra Astronomical computation Manuscript not uploaded yet
c. 8th-9th century CE Probable

Sankara Acharya

Acarya Field: Philosophy Brahmasutrabhasya and other works Major systematic Advaita Vedanta interpretation Manuscript not uploaded yet
c. 850 CE Probable

Mahaviracarya Acharya

Mathematician Field: Mathematics Ganitasarasangraha Arithmetic, geometry, fractions, equations and mathematical procedures Source: Government Sanskrit Department (sanskrit.nic.in) Manuscript not uploaded yet
date disputed Disputed

Madhava tradition - medicine Knowledge tradition

Diagnostic tradition Field: Medicine No Sanskrit work recorded on this row Step in the Ayurvedic transmission chain as given by the Ministry of AYUSH Source: Ministry of AYUSH Manuscript not uploaded yet
c. 10th-11th century CE Probable

Surapala Author

Author on plants Field: Botany, agriculture Vrksayurveda Plant cultivation, plant care and medicinal plants Manuscript not uploaded yet
c. 11th century CE Probable

Bhoja Author

Author on architecture and aesthetics Field: Architecture, arts, aesthetics Samaranganasutradhara, Sarasvatikanthabharana Architecture, construction, arts and aesthetics Manuscript not uploaded yet
c. 11th century CE Probable

Earlier Kerala mathematical tradition Knowledge tradition

Kerala school Field: Mathematics, astronomy Later Kerala texts preserve the tradition Infinite series, approximation and advanced mathematical astronomy Source: Vedic Heritage Portal (vedicheritage.gov.in) Manuscript not uploaded yet
1114-c. 1185 CE Reasonably established

Bhaskaracarya II Acharya

Mathematician and astronomer Field: Mathematics, astronomy Siddhantasiromani, Lilavati, Bijaganita Algebra, arithmetic, geometry, planetary astronomy Source: Government Sanskrit Department (sanskrit.nic.in) Manuscript not uploaded yet
c. 12th century CE Probable

Sarngadhara Author

Author on pharmacy Field: Medicine, pharmacy Sarngadharasamhita Pharmaceutical preparations and Ayurvedic practice Source: Ministry of AYUSH Manuscript not uploaded yet
c. 13th-14th century CE Probable

Madhava of Sangamagrama Author

Mathematician and astronomer Field: Mathematics, astronomy Works and the later Kerala mathematical tradition Infinite series and advanced trigonometric mathematics Source: Vedic Heritage Portal (vedicheritage.gov.in) Manuscript not uploaded yet
c. 14th-15th century CE Probable

Paramesvara Author

Astronomer Field: Astronomy Drgganita and other works Observational astronomy and computational refinement Source: Vedic Heritage Portal (vedicheritage.gov.in) Manuscript not uploaded yet
c. 15th-16th century CE Probable

Nilakantha Somayaji Author

Astronomer and mathematician Field: Astronomy, mathematics Tantrasangraha Planetary models and mathematical astronomy Source: Vedic Heritage Portal (vedicheritage.gov.in) Manuscript not uploaded yet
c. 16th century CE Probable

Ganesa Daivajna Author

Astronomer Field: Astronomy Grahalaghava Astronomical computation and calendrical methods Manuscript not uploaded yet
c. 16th century CE Probable

Jyesthadeva Author

Mathematician Field: Mathematics Yuktibhasa Detailed mathematical demonstrations and Kerala-school mathematics Source: Vedic Heritage Portal (vedicheritage.gov.in) Manuscript not uploaded yet
date not established Unknown

Bhavamisra Author

Author on medicine Field: Medicine No Sanskrit work recorded on this row Final step in the Ayurvedic transmission chain as given by the Ministry of AYUSH Source: Ministry of AYUSH Manuscript not uploaded yet
c. 17th century CE Probable

Narayana Pandita Author

Mathematician Field: Mathematics Ganitakaumudi, Bijaganitavatamsa Combinatorics, arithmetic and algebra Manuscript not uploaded yet
c. 17th century CE Probable

Kamalakara Author

Astronomer Field: Astronomy Siddhantatattvaviveka Astronomical computation and siddhanta refinement Manuscript not uploaded yet
18th-19th century CE Probable

Continuing Sanskrit mathematical and astronomical traditions Knowledge tradition

Regional siddhanta schools Field: Astronomy, mathematics Various siddhanta and regional works Continued development of computational astronomy Source: Government Sanskrit Department (sanskrit.nic.in) Manuscript not uploaded yet

Transmission chains — knowledge handed on, not invented once

The honest shape of the record. Caraka did not invent medicine; the Atreya–Agnivesa–Caraka tradition produced the Carakasamhita.

Astronomy and mathematics

Vedic Rsi tradition - astronomy and number c. 1500-1200 BCE or earlier · Rgveda and other Vedic Samhitas
↓
Lagadha tradition c. 800-400 BCE · Vedanga Jyotisa
↓
Siddhanta astronomical tradition c. 3rd century CE onward · Suryasiddhanta
↓
Aryabhata 476-550 CE · Aryabhatiya
↓
Varahamihira c. 505-587 CE · Pancasiddhantika, Brhatsamhita, Brhajjataka
↓
Bhaskara I c. 6th century CE · Aryabhatiyabhasya, Mahabhaskariya
↓
Brahmagupta 598-668 CE · Brahmasphutasiddhanta
↓
Lalla c. 8th century CE · Sisyadhivrddhidatantra
↓
Mahaviracarya c. 850 CE · Ganitasarasangraha
↓
Bhaskaracarya II 1114-c. 1185 CE · Siddhantasiromani, Lilavati, Bijaganita
↓
Madhava of Sangamagrama c. 13th-14th century CE · Works and the later Kerala mathematical tradition
↓
Paramesvara c. 14th-15th century CE · Drgganita and other works
↓
Nilakantha Somayaji c. 15th-16th century CE · Tantrasangraha
↓
Jyesthadeva c. 16th century CE · Yuktibhasa
↓
Continuing Sanskrit mathematical and astronomical traditions 18th-19th century CE · Various siddhanta and regional works

Medicine and surgery

Dhanvantari tradition ancient / date disputed
↓
Atreya ancient / date disputed
↓
Agnivesa ancient / date disputed · Agnivesa Tantra
↓
Atreya-Agnivesa-Caraka tradition ancient / date disputed · Carakasamhita
↓
Dhanvantari-Susruta tradition ancient / date disputed · Susrutasamhita
↓
Vagbhata tradition c. 6th-7th century CE · Astangasangraha, Astangahrdaya
↓
Madhava tradition - medicine date disputed
↓
Sarngadhara c. 12th century CE · Sarngadharasamhita
↓
Bhavamisra date not established

The pathway — from the Sanskrit text to the modern subject

All streams Mathematics Trigonometry Physics Chemistry Biology and Botany Human biology, health and first aid Physical education and wellbeing Astronomy and Earth science Computer science and computational thinking Languages and grammar Economics, commerce and business studies Political science, civics and law Psychology and study of mind Philosophy, logic and critical thinking Environmental studies Agriculture Art, music, dance and drama Design, technology and engineering Ethics and values education Medicine and surgery (MBBS, MS) Pharmacy and pharmacology Engineering and architecture Law and jurisprudence Management, public administration and economics Linguistics and computational linguistics Mathematics and mathematical sciences Astronomy and astrophysics Psychology and cognitive science Philosophy Performing arts Agriculture and environmental science

Design, technology and engineering

Shilpa Shastra and Vastu Shastra Evidence incomplete

1Written

Manasara The Manasara tradition — Shilpa and vastu compilers; authorship not individual Date disputed; the text is a compilation · disputed

2Taught

Shilpa Shastra and Vastu Shastra Commentary tradition not yet recorded The Manasara sets out units of measurement and proportion, site selection and orientation, foundations, columns and superstructure, town layout and the ordering of a building from plan to finish.

3Today

Design, technology and engineering Modern application not yet written Taught in: CBSE · IGCSE · IB

4Proof

No modern scholarly reference recorded Status: traditionally attributed