The Baudhāyana Śulba Sūtra — Geometry Born from the Altar
From The Baudhāyana Śulba Sūtra, taught by Acharya T Krishnatrey. This lesson is free to read.
Around **800 BCE or earlier**, the sage **Baudhāyana** composed the oldest of the **Śulba Sūtras** — manuals of applied geometry for building the fire-altars (vedis) of the Vedic yajña. From the humble need to lay out an altar with exact shape and area, using only a cord (**śulba**) and pegs, arose the earliest known statement of the "**Pythagorean**" theorem, a beautiful approximation of **√2**, and the geometry of **squaring the circle** — mathematics born from the sacred. <pre data-block="quote">The altar had to be built to an exact measure and shape, for the yajña to be true — and so the ṛṣis became geometers.</pre>