This group focuses on the kinds of research published in journals such as the Indian Journal of History of Science, the e-Journal of Indian Medicine: EJIM, Asian Medicine, and History of Science in South Asia. The working group brings together scholars who study the history of science in South Asia before about 1800 and as discoverable from literatures in Sanskrit and other indigenous Indian languages. We take “South Asia” as an inclusive, non-political, socio-geographic term referring to the area from Afghanistan to Sri Lanka, from Pakistan to Bangladesh, and of course India. Discussions on the influences of South Asian cultures beyond these borders is also welcome, for example Nepalese or Tibetan influences on China, Sri Lankan influences on the Maldives, or Indian influences in South-East Asia. We broadly conceive of “science” to include all forms of systematic intellectual activity, as in the German “die Wissenschaft,” that covers most forms of academic scholarship. Theoretical discussions of the meaning of “science” in the South Asian context are welcome. The group meets monthly during the academic year. We welcome the presentation of individual and group work-in-progress, facilitated discussions of published articles and books, and focused reading sessions in Indic languages.
 
 

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Participants will avoid any inappropriate actions or statements based on individual characteristics such as age, race, religion, ethnicity, sexual orientation, gender identity, gender expression, marital status, nationality, political affiliation, ability status, educational background, or any other characteristic protected by law. Disruptive or harassing behavior of any kind will not be tolerated. Harassment includes but is not limited to inappropriate or intimidating behavior and language, unwelcome jokes or comments, unwanted touching or attention, offensive images, photography without permission, and stalking.

Participants may send reports or concerns about violations of this policy to conduct@chstm.org.

Upcoming Meetings

Monday, November 17, 2025, 10:30 am - 12:00 pm EST

Christèle Barois (CESAH)

Embryogenesis narratives and the history of ancient Indian medicine

As part of my study of embryogenesis in Epic and Purāṇic literature, I have established a specialized corpus of embryonic development narratives, spanning the period from the first centuries of the Common Era to the first centuries of the second millennium. Generally quite short (at most sixty verses), these embryogenesis narratives represent a specific type of narrative that shares a similar structure and invariably appears in the context of teaching Sāṃkhya philosophy.

Embryology as expounded by classical Indian medicine (āyurveda) constitutes the conceptual framework of reference, since these narratives describe the development of the embryo in accordance with the processes and temporality taught in the “Book of the Body” (śārīrasthāna) of the ancient medical compendia, and share some of their technical terminology with classical Indian medicine (Suneson 1991).

Bibliographical references: 

Barois, C. (2022).    ‘Cette âme tombée dans un corps étranger’. Notes introductives au Bhāgavatapurāṇa III 31. In: Embryon, personne et parenté, Mathieu, Séverine, Enric Porqueres i Gené (eds). Paris: Éditions de la Maison des sciences de l'homme, 54, 39-62.

Suneson, C. (1991). Remarks on some interrelated terms in the ancient Indian embryology. Wiener Zeitschrift Für Die Kunde Südasiens / Vienna Journal of South Asian Studies, 35, 109–121.

 

Monday, December 15, 2025, 10:30 am - 12:00 pm EST

Sonia Wigh (University of Cambridge)

The Lone Pregnant Body: Illustrating Feminine Forms in Manṣūr’s Anatomy

The Tašrīḥ-i Manṣūrī [Manṣūr’s Anatomy] is the first known medical text in the Persianate world containing full-body anatomical images. It was composed in 1386 CE by Manṣūr bin Muḥammad bin Ilyās Shīrāzī of Shiraz (Iran). A standard copy of Manṣūr’s Anatomy contained six illustrations of a skeleton, nerves, muscles, veins and arteries, digestive tract and other vital organs, and a female form with gravid uterus. This paper tracks the visual evolution of the female form in various manuscript copies of the Tašrīḥ, culminating in its lithographic print in Delhi in the 1840’s. By highlighting key moments of transformations, I demonstrate that while there were limited changes in the five illustrations of human (male) anatomy, there was a stark difference in the way the female form was perceived in the manuscript version, from schematic drawings to full-figured female bodies with geographical, nationalistic markings in eighteenth-century India and Qajari Iran.

Initially, the six full-length anatomical drawings in the Tašrīḥ-i Manṣūrī consist of schematic outline of the human body in a squatting position, with their hand on their knees. Some even argue that the sixth image (purportedly added by Ibn Ilyās himself) was actually a gravid uterus superimposed on the pre-existing illustration of the arterial networks. Over the course of two centuries, from feminine markers like hair, the sixth image assumed a more naturalistic, aesthetic human female bodily form. Although one cannot assume a transposition of identical knowledge-making practices across time and space, this paper attempts to follow the evolution in visual language of one image and map onto changing consumption patterns caused by socio-cultural and economic transformations over a course of two centuries in India and Iran.


 

Monday, January 26, 2026, 10:30 am - 12:00 pm EST

Satyanad Kichenassamy Université de Reims Champagne-Ardenne, LMR (CNRS, UMR9008) and
GREI (EPHE-PSL and Sorbonne-Université),

Mathematical reasoning as an outgrowth of Vedic ritual.

The earliest text that formulates the theorem on the square of the diagonal of an oblong as a universal statement is Baudhāyana’s Śulvasūtra. This theorem is embedded in a discourse without diagrams [7], that indicates the first extant rigorous derivation of it [4]. The invention of mathematical activity and based on inferences on word-representations reflects closely the relations between language, thought and action in Vedic ritual [6]. Later Indian mathematical inventions were still based on this view, combined with the relatively late introduction of writing. This accounts for the invention of two new forms of representation [5], namely the positional system with zero, and literal algebra. While these developments are best understood against the backdrop of modern Indology, especially at EPHE in Paris [1–3, 6], we will show here on a few texts that do not require familiarity with Indology, how the view that mathematical activity is a process of
inferences on word representations, to be performed by free individuals, was part and parcel of a reflexive analysis of the successes and failures of Vedic ritual.


[1] Filliozat, Pierre-Sylvain, 1990. « Yukti: le quatrième pramāṇa des médecins (Carakasaṃhitā, Sūtrasthāna, XI, 23) ». Journal of the European Āyurvedic Society, 1 (1990), 33-46.
[2] Houben, Jan E.M., 1991. The Pravargya Brāhmaṇa of the Taittirīya Āraṇyaka. Delhi: Motilal Banarsidass.
[3] Houben, Jan E.M., 2000. “The ritual pragmatics of a Vedic hymn: The 'riddle hymn' (Ṛgveda 1.164) and the Pravargya-ritual.” Journal of the American Oriental Society, 120 (4) (2000), 499-536.
[4] Kichenassamy, Satyanad, 2023a. « Hétérométrie, cohérence et discours apodictique : la dérivation du théorème du carré de la diagonale chez Baudhāyana », Journal Asiatique, 311 (2), (2023), 267-303
[5] Kichenassamy, Satyanad, 2023b. “New perspectives on the development of the Indian positional system in the light of Sanskrit, Pali and Tamil sources,” Gaṇita Bhāratī, 45 (1) (2023), 1-21.
[6] Kichenassamy, Satyanad, 2025a. « Philologie et épistémologie mathématique en Inde ancienne», Annuaire de l'École pratique des hautes études (EPHE), Section des sciences historiques et philologiques, 156 (2025), 408-414.
[7] Kichenassamy, Satyanad, 2025b. “Geometry without figures: Mathematics as apodictic discourse in Indian texts,” in Vedic Education and Ancient Indian Astronomy, Parvathy K. P. & Satyabhama N. (eds.), Motilal Banarsidass, New Delhi, 2025, pp. 105-135.

Monday, February 23, 2026, 10:30 am - 12:00 pm EST

Kenneth Zysk (University of Copenhagen)

Palmistry or the system of the bodily lines (Rekhāśāstra) and its spread westward

This paper is divided into two parts: Part one explores palmistry, known as Rekhāśāstra in India, as a system of divination within the broader tradition of Indian marks or physiognomy known as Sāmudrikaśāstra. It highlights two main Indian traditions: an oral Romani tradition and a written Śāstric tradition and focuses primarily on the latter's historical development and visual representations. Part two compares Indian palmistry with its Western counterpart, tracing the transmission of Indian chiromancy into Europe via Arabic and Hebrew translations, and noting the shared evolution of palmistry as both artistic expression and a tool for prognostication. The paper aims to illuminate the ancient origins and interconnected history of palmistry across diverse cultures, emphasizing the hand’s persistent focus of human fascination as an important means of personal identification.

Monday, March 16, 2026, 10:30 am - 12:00 pm EDT

 

Divya Kumar-Dumas (University of Maryland)

Metal, Matter, and Meaning: Toward a Textual and Scientific History of the Sumhuram Yakṣī

A bronze female figurine excavated from Sumhuram (modern Oman) and now held at the Smithsonian (NMAA S2013.2.378) has long been recognized as an Indian yakṣī, brought to South Arabia via Indian Ocean trade in the early centuries CE. In previous work, I examined its iconography and fragmentary condition as evidence of image mobility and reuse. This working paper marks a new phase of inquiry: pairing planned scientific analysis and experimental archaeology with early textual references to metalwork.

From the Caraka Saṃhitā’s description of casting techniques to the Agni Purāṇa’s ritual guidelines for disposing worn icons, to Vasubandhu’s Buddhist meditations on molten metal as a seething mass of sentience, I ask how Sanskrit textual ontologies of matter might inform—and be informed by—the scientific study of composition and form. At stake is a more integrated understanding of portable bronze images, moving beyond trade and iconography, toward a cross-disciplinary history of science, perception, and the sacred. 

I invite CHSTM participants to help frame this evolving methodology, especially through suggestions of sources on smelting, melting, making, breaking, or discarding metal objects in the first millennium.

Monday, April 20, 2026, 10:30 am - 12:00 pm EDT

Jan Gerris (University of Ghent)

Tandulaveyāliya - An ancient Jain philosophical reflection on life

The Tandulaveyāliya is a relatively short philosophical treatise in the format of a dialogue on life in general between a master and his disciple, using the disappointments and sufferings of life as rational and emotional arguments to convince the pupil to take religious vows and lead a life dedicated to the right religion. With an uncertain dating between the fifth and seventh centuries CE, and an unknown authorship, it is a relatively short work. In a mix of prose and verse it is structured as a private question and answer session between Mahāvīra and Indrabhūti Gautama, his first gaṇadhara or chief disciple. In his discourse, Mahāvīra offers a disconcerting portrayal of the human body and critiques the superficiality of material life—characterized by eating, drinking, and reproduction. The text describes processes such as fertilization, early embryonic development, pregnancy, human anatomy, and various physiological functions. In one remarkable passage an attempt is made to calculate the precise amount of rice grains (taṇḍula) and other dietary elements consumed by a man who lives for a hundred years. This calculation gives the work its name, Tandulaveyāliya (Reflection on Rice Grains).

In this presentation,  some of the underlying Jain philosophical and religious insights, which constitute its educative value will be discussed and ancient Indian insights in early human embryology will be contrasted with those in the age of MEM (modern established medicine).

Monday, May 18, 2026, 10:30 am - 12:00 pm EDT

Snapshot Presentations!

Past Meetings

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  • Presenter: Dominik Wujastyk, University of Alberta
  • Topic: Early Modern Eristic: Readings from the medical polemic Rogārogavāda by Vīreśvara
  • Bibliography

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  • Time Buddy
  • Continuing the program from the previous session (see "Past Meetings," below on this screen).

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  • Time Buddy
  •  Continuing the program from the previous session.

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  • TimeBuddy - meeting time in different timezones.
  • Presenters: Kenneth Zysk (University of Copenhagen) & Tsutomu Yamashita (Kyoto University of Advanced Science)
  • Topic: Sanskrit Medical Scholasticism.  Readings from the Caraka Saṃhitā: Cikitsāsthāna 2.2 with Jajjaṭa’s Nirantarapadavyākhyā and other commentaries Sanskrit Medical Scholasticism

The committee decided that the first meeting of the Working Group on the History of Science in Early South Asia should be dedicated to medical science and continue as much as is possible the projects that stem from the earlier working group on the Caraka Saṃhitā, begun some years ago in Vienna. In line with this, Tsutomu and I volunteered to chair the first couple of sessions of the workshop.
The seminars will be devoted to the scholastic tradition of medical Sanskrit, as it pertains to the text of the Caraka Saṃhitā. We shall focus on the Caraka Saṃhitā, Cikitsāsthāna 2, which deals with Vājīkaraṇa or “Potency Therapy”. This chapter of Caraka’s corpus was chosen for two reasons. First, it is the first complete chapter that contains the commentary of Jajjaṭa, the earliest extant commentary available to us; secondly, it is the second in a set of two chapters or rather books, which together form a specific system of knowledge, which in all probability was incorporated into the corpus at an early date. The two chapters or books, Rasāyana and Vājīkaraṇa, which together deal with the prolongation and propagation of human life by the use of specialised medicines. Both chapters are constructed in the same manner, being divided into four separate parts (pāda) or chapters, indicating that structurally they derive from a common source.
Since our study aims at the Sanskrit medical tradition of the Caraka Saṃhitā, we wanted to include all the extant Sanskrit commentaries on that text. We are in the process of editing the commentary of Jajjaṭa, which occurs only in 20th century copies of a single lost palm-leaf manuscript. Although a version of the commentary has already been published, it requires critical appraisal from the original sources. The other three commentaries also occur in published versions. For the sake of discussion, the commentaries have been broken up into two groups:

  •  Old: Jajjaṭa’s Nirantarapadavyākhya (7th-8th cent. CE), and Cakrapaṇidatta’s Āyurvedadīpikā (3rd quarter of the 11thc cent. CE)
  • New: Gaṅgādhara’s Jalpakalpataru (mid-19th cent.) and Yogīndranāth Sen’s Carakopaskāra (early 20th cent.)  

    In the seminars, we shall look at all these commentaries for a given set of verses, first in order to understand the text and how the system of commentary works with medical literature; secondly, to ascertain how the information was transmitted over time; and finally, what kind of historical and cultural information can be gleaned from them.
    Since the first part of the chapter Vājīkaraṇa has been published, we begin with the second part or chapter, called simply, “milk has been poured” (āsiktakṣīrika)” over it. Since most of the chapter contains medical recipes or formulae, we shall try to unpack precisely the step-by-step method by which the formula was prepared, which cannot be understood without the help of the scholastic tradition. Information will be distributed before the scheduled seminar. This is the first time for this kind of one-line seminar for most of us, so patience is required in the beginning. As background reading, I suggest that participants look at the following:

      Group Conveners

      labrooks

      Lisa Brooks

      Lisa Allette Brooks is a Research Fellow at the University of California Berkeley Center for Science, Medicine, Technology & Society. Lisa recently completed a Killam Postdoctoral Fellow at the University of Alberta and was recipient of the Dorothy Killam Memorial Postdoctoral Prize, as well as a 2022-2023 AAS Pipeline Fellowship. Lisa’s current project, Leech Trouble: Therapeutic Entanglements in More-Than-Human Medicines, is a historical and textual study of human-leech medicine in South Asia and a comparative ethnographic study of leech therapy in contemporary ayurvedic medicine and biomedicine. Lisa’s work has been published in the Asian Review of World Histories, Medical Anthropology Quarterly, Asian Medicine and in the edited volume Fluid Matter(s) by ANU press (eds. Kuriyama and Koehle). Lisa co-edited a special issue of Asian Medicine, “Medicines and Memories in South Asia” 15.1 (2020) and is the South Asia Area Editor for the journal Asian Medicine and reviews editor for History of Science in South Asia. In 2021 Lisa completed a PhD in South and Southeast Asian Studies with Designated Emphases in Science and Technology Studies, and in Women, Gender, and Sexuality at UC Berkeley. Lisa'a interests include multispecies medicine, histories of health, healing, and embodiment, queer and feminist science studies, and sensory studies.   

       

      Dagmar

      Dagmar Wujastyk

      Dagmar Wujastyk is an Associate Professor in the department of History, Classics, and Religious Studies.  She is an indologist specializing in the history and literature of classical South Asia, including Indian medicine (Ayurveda), iatrochemistry (rasaśāstra), and yoga.  Her publications include Modern and Global Ayurveda – Pluralism and Paradigms (SUNY Press) and Well-mannered medicine. Medical Ethics and Etiquette in the Sanskrit Medical Classics (OUP NY).  She is Associate Editor of the journal Asian Medicine and History of Science in South Asia.  From 2015-2020, Prof. Wujastyk was Principal Investigator of a European Research Council “Horizon 2020” project on the entangled histories of yoga, medicine and alchemy in medieval India.  The project website is http://ayuryog.org/

       

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