Itihasa · इतिहास
The history of yoga is often told as an unbroken line from the Indus valley to the modern mat. It is not one. It is a long conversation with gaps, reversals and borrowings, in which the meaning of the word "yoga" changed several times — and the story is more interesting told that way.
c. 3000 – 1900 BCE
A steatite seal excavated at Mohenjo-daro shows a figure seated with the legs folded, heels together, arms resting on the knees. Sir John Marshall called it Paśupati, the lord of animals, and read it as a proto-Shiva in a yogic posture. Later scholars have argued it may be a bull-headed deity or a seated dignitary and nothing more. The honest position is that we do not know — but the posture is recognisable, and it is very old.
The Pashupati seal
c. 1500 – 900 BCE
वेद
The word yoga appears in the Rig Veda, but it means yoking — harnessing an ox to a cart, or a horse to a chariot. What the Vedas do give us is tapas, the heat generated by austerity, and the figure of the ṛṣi who sits apart and sees. The vocabulary of later yoga is already forming here, even though the practice is not.
Yoga means "to yoke"
c. 800 – 400 BCE
उपनिषद्
Here yoga first means what we would recognise. The Katha Upanishad gives the image of the body as a chariot, the senses as horses and the mind as reins, and says: "This they consider yoga — the steady holding back of the senses." The Shvetashvatara describes posture, breath and a place for practice. Within a few centuries the whole framework is in place.
The chariot of the body
c. 400 BCE – 200 CE
भगवद्गीता
Seven hundred verses inside the Mahabharata, and the text that opened yoga to people with jobs. Krishna describes three paths — karma yoga, the yoga of action performed without attachment to its fruit; bhakti yoga, the yoga of devotion; and jñāna yoga, the yoga of knowledge. None of them requires leaving the world. That single move is why yoga survived as a householder practice rather than a monastic one.
Yoga for householders
c. 200 BCE – 400 CE
योगसूत्र
Not an invention but a compilation — Patanjali gathers what was already circulating and gives it a spine: 196 aphorisms, four chapters, eight limbs. The text is systematic where everything before it was scattered, and it became the reference point for everything after. It says almost nothing about physical posture, which is worth sitting with.
Eight limbs, one spine
c. 500 – 1300 CE
नाथ सम्प्रदाय
A decisive turn. Where earlier yoga often treated the body as an obstacle, tantra treats it as the instrument — the site where liberation happens rather than the thing to be escaped. The chakras, the nadis, kundalini and the bandhas all belong to this period. Matsyendranath and his student Gorakhnath found the Nath sampradaya, and the physical practices that most people now call yoga begin to take shape.
The body as instrument
c. 1400 – 1700 CE
हठयोग प्रदीपिका
Svatmarama's Hatha Yoga Pradipika (15th century) describes fifteen asanas, eight pranayamas, ten mudras and the six cleansing kriyas. The Gheranda Samhita (17th century) gives thirty-two asanas and twenty-five mudras. The Shiva Samhita adds the philosophy. Ha and ṭha are read as sun and moon — the union of the two currents this site's pranayama section is still working with.
Fifteen asanas, ten mudras
1893 – 1980
Swami Vivekananda addresses the World Parliament of Religions in Chicago in 1893 and yoga enters Western awareness — as philosophy, not posture. Forty years later T. Krishnamacharya, teaching at the Mysore Palace, develops the vigorous, sequenced asana practice that his students B. K. S. Iyengar, K. Pattabhi Jois and Indra Devi carry across the world. Swami Sivananda and Swami Satyananda establish the Bihar School lineage. Much of what is taught in studios today was assembled in a single palace room in the 1930s.
Mysore, 1930s
1980 – today
Yoga enters the laboratory. Randomised trials establish real effects on blood pressure, chronic low back pain, anxiety, depression and quality of life in cancer care; other claims do not survive contact with a control group. The United Nations designates 21 June as the International Day of Yoga in 2014. What survives the scrutiny is substantial — and it is, notably, mostly the breath and the sitting rather than the difficult postures.
What the evidence supports
Four corrections
Four things repeated so often that they have become common knowledge, and are not true.
"Yoga is exercise."
Three of Patanjali's 196 sutras concern posture. Asana is one limb of eight, and the least discussed of them in the source text. Exercise is a genuine benefit; it was never the aim.
"You need to be flexible."
That is like saying you need to be clean to take a bath. Flexibility is an outcome. The requirement is a steady, comfortable seat, and a chair will do.
"Yoga cures disease."
Yoga supports health, and for some conditions the evidence is strong. It is not a substitute for medicine, and any teacher who tells you to stop your tablets is telling you something dangerous.
"Yoga belongs to one religion."
It arose within Hindu, Buddhist and Jain traditions together, and the sutras themselves prescribe no deity — īśvara-praṇidhāna works for a devotee as devotion and for a sceptic as letting go of outcome.
"It does not matter where in this history you enter it. Only when — and the answer is always now."