The Buddha's Dates Remain a Scholarly Dispute
One miscalculated king pushes an entire chronology sixty years in the wrong direction
Quick facts
- Old consensus
- Buddha's death within a few years of 480 BCE
- Anchor point
- Reign dates of Ashoka the Great
- Range of scholarly proposals for his death
- 486 BCE to 261 BCE
- Most-favored range today
- Between 410 and 370 BCE
What happened
For most of the 20th century, scholars accepted that the Buddha died within a few years of 480 BCE. That consensus collapsed once historians realized the dates used for the Mauryan emperor Ashoka in the long Sri Lankan chronology were miscalculated by roughly 60 to 70 years, since Ashoka's reign is one of the few fixed points in early Indian history, cross-checked against Greek sources naming his contemporaries. Recalculating from a corrected Ashoka pushed the Buddha's death to somewhere around 486 BCE by one method, while a separate Indian short chronology puts it as late as 368 BCE. A modern academic survey of experts found proposed dates for the Buddha's death ranging all the way from 486 to 261 BCE, with most historians now favoring a date somewhere in the 5th century BCE rather than the traditional 6th century.
Why it matters
The size of the disagreement, more than a century in some versions, shows how thin the chronological record for early India actually is: there is no contemporary inscription or document from the Buddha's own lifetime, and every date depends on later king-lists and sectarian chronicles that do not agree with each other.
How we know
The dating debate rests on cross-referencing the Sinhalese Buddhist chronicles (the long chronology) against Indian and Chinese/Tibetan textual traditions (the short chronology), anchored to the more securely dated reign of Ashoka, whose edicts name Hellenistic kings of known reign dates.
Sources
- OpenLearn, The Open University. The Dates of the Buddha · Reputable sourceopen.edu · The domain "open.edu" is on our Reputable source registry.
- World History Encyclopedia. Siddhartha Gautama · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
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