What can archaeology tell us about Harappan language?

Signs survive; an agreed reading does not

Archaeology can recover objects bearing signs and relate them to places, materials and other finds. It cannot automatically supply the words those signs expressed. The Roja Muthiah Research Library’s Indus Research Centre describes the Indus script as still undeciphered. Its corpus tool draws on Iravatham Mahadevan’s concordance, making recurring signs and sequences available for comparison. The existence of such a catalogue records a body of evidence; it does not mean that the signs have acquired an agreed pronunciation or translation.[1]

A statistical resemblance is a limited result

In 2009, Rajesh Rao and colleagues compared the ordering of Indus signs with selected linguistic and nonlinguistic systems. They measured conditional entropy: roughly, how predictable a following sign is from the preceding one. Their Indus results resembled the linguistic comparisons more closely than the selected alternatives. They presented this as increasing the probability that the signs represented language. The study did not provide a dictionary, translate a seal or establish that a particular modern language was spoken at Harappa.[2]

The choice of comparisons matters. Richard Sproat’s 2014 article tested a larger collection of linguistic and nonlinguistic systems and disputed the usefulness of the previously published measures. His proposed tests classified the Indus inscriptions as nonlinguistic. This is an attributed scholarly disagreement about how to interpret patterns, not permission to report either classification as a universally accepted decipherment. Repeated signs can be measurable even while their relationship to speech remains disputed.[3]

Keep context, structure and language identification separate

Rao’s paper describes signs on stamp seals, sealings, amulets and small tablets. Finding a sequence on one of these objects gives a material setting for analysis. It does not reveal whether a particular sign names a person, denotes a commodity or represents a sound. Those are further interpretations requiring their own evidence. Similarity to one comparison language in a statistical plot cannot by itself establish translation or uninterrupted descent into a language spoken today.[2]

A responsible answer therefore distinguishes the surviving sign corpus from competing explanations of its structure. Sproat’s critique shows why a result depends on what a test can actually distinguish, not just whether it produces a striking graph. Archaeological context and computational analysis can sharpen questions about the signs; identifying a Harappan language requires an evidential step that these studies have not jointly settled.[3]