The Yuga Cycles

A Map of Time Older Than History

Modern history works on a short scale. Civilisation, in the conventional account, begins with the first cities of Mesopotamia roughly five thousand years ago, and everything before that is read as a slow climb out of the Stone Age. That account explains a great deal, and it rests on real evidence. But it reaches its edge sooner than is often admitted — at the precision of the oldest megalithic stonework, at the flood traditions shared by cultures that never met, at structures whose builders left no written claim to them.

The Hindu texts offer a different map of time. The Puranas and the Mahabharata do not describe history as a straight line of progress, but as a cycle: four ages, the Yugas, through which the world rises to its height and then descends, before the cycle turns again. This page sets out that system as the texts themselves describe it — its numbers, its internal logic, and the places where it touches the physical record. None of it is offered as proof. It is offered as a frame worth holding up against the evidence, to see what it illuminates.

The Reckoning of Time

The Puranic system does not count the ages in ordinary human years, but in divine years (deva-varsha), where a single divine year equals 360 human years. The four Yugas are assigned the following spans in divine years — 4,800, 3,600, 2,400 and 1,200 — and multiplying each by 360 gives their length in human years. The result is a clean descending ratio of 4 : 3 : 2 : 1.

This internal consistency is one of the system’s most striking features. The numbers are not arbitrary; they fall out of a simple proportion, and they always sum to the same total.

The four Yugas, in human years (1 divine year = 360 human years)

Satya (Krita) Yuga — 4,800 divine years × 360 = 1,728,000 years Treta Yuga — 3,600 × 360 = 1,296,000 years Dvapara Yuga — 2,400 × 360 = 864,000 years Kali Yuga — 1,200 × 360 = 432,000 years

One full cycle (Maha-Yuga): 12,000 divine years × 360 = 4,320,000 years

One full cycle of the four ages — a Maha-Yuga — therefore runs to 4,320,000 human years.

The Four Ages

Satya Yuga — the Age of Truth

The first and longest age (1,728,000 years) is described as a time of complete harmony. Virtue is whole, knowledge is direct rather than learned, and there is neither disease nor want. In the texts, humanity stands closest to its source and needs no instruction to know what is true.

Where it meets the record: an age on this scale lies far beyond any timeline archaeology recognises for anatomically modern humans, and the conventional view treats it as purely symbolic. That objection is fair and should be stated plainly. What the frame invites is a closer look at genuine anomalies — out-of-place finds and unexplained precision — not as proof of the age, but as the kind of thing the age would predict.

Treta Yuga — the Age of Three-Quarters

In the second age (1,296,000 years) virtue stands at three parts in four. The first divisions appear: possession, ambition, the rise of rulers and the first conflicts. It is the age in which humanity begins to act upon the world rather than simply dwell within it — the age of the great kings and the first large works.

Dvapara Yuga — the Age of Halving

By the third age (864,000 years) righteousness has fallen to half. Stability gives way to restlessness; wealth and pleasure become ends in themselves, and truth is increasingly hidden rather than known. The texts describe the long descent of this age as the world drifting steadily further from its origin.

Where it meets the record: the closing stretch of Dvapara — its final millennia, the approach to the turning point near 3102 BCE — is the descent into the present darkness. It is within this long downward phase, not at its precise end, that one can place a catastrophe such as the Younger Dryas (around 9600 BCE): a real and well-evidenced climatic upheaval, here read as a marker on the way down rather than as the close of the age itself. The framing matters — it is a link in the descent, offered as a parallel, not a dated equivalence.

Kali Yuga — the Age of Discord

The fourth and shortest age (432,000 years) is our own. Virtue stands at one part in four. The texts describe it as the age of forgetting: spiritual understanding fades, the old knowledge survives only in fragments, and material concern eclipses almost everything else. By the traditional reckoning, Kali Yuga began around 3102 BCE — the same horizon at which conventional history places the first cities and the first writing.

That coincidence is worth pausing on. The point where mainstream history says civilisation begins is the very point where the Puranic system says remembered civilisation ends. The two maps meet at the same line and read it in opposite directions — one as a dawn, the other as a dusk.

Where We Stand

By the traditional count, a little over five thousand years have passed of the 432,000-year Kali Yuga — we are very early in the last and darkest age. The cycle, however, does not run down to nothing and stop. It turns. When Kali ends, Satya begins again, and the long ascent resumes.

This is the heart of the Yuga model and the reason it sits uneasily with the modern story of steady progress. It does not measure human history along a single rising line from primitive to advanced. It measures it as a wheel — of rise, height, descent and return. Read this way, the “shadows” this project follows are not merely myths of a vanished past. They are what one would expect to find scattered behind us if the texts are describing something real: the worn echoes of ages that stood higher than our own, remembered now only in stone and story.

A note on sources

The figures and descriptions on this page are drawn from the Puranic and epic literature — the Vishnu Purana, the Bhagavata Purana, the Mahabharata and the Laws of Manu. Modern reinterpretations that rescale the Yugas to fit astronomical precession are not used here; the aim is to present the system as the original texts give it, and then to ask honestly where it meets the physical record.

🌂 Between myth and stone lies the truth of our forgotten origins.