Indus Valley Script — 5,000 Years of Silence
◈Key Scholars
60 years of Indus script research. Proposed the Dravidian language hypothesis.
Controversially proposed that Indus signs are not writing at all.
◈How Was It Deciphered?
Indus script has about 400 basic signs. Current approaches: 1) Frequency analysis — identifying patterns in common signs. 2) Language comparison — matching with Dravidian (Tamil) grammatical structures. 3) Image interpretation — inferring meaning from animal, plant, and geometric signs. None has produced decisive results. The core barriers: inscriptions are too short (average 5 signs), no bilingual exists, and the underlying language is completely unknown.
◈Decoded Characters
Typical Indus seal layout: [animal image] + [5–7 signs] — the animal likely indicates a clan or status, the signs a name or title. Plausible but unproven.
◈The Full Story
The Indus Civilization (Harappan civilization), flourishing around 2600–1900 BC, included the world's largest cities of the time. Mohenjo-daro alone had a population of ~40,000. Their writing is the Indus script.
No breakthrough. A 2009 computer analysis showed Indus signs have structural properties of natural language — but that's far from decipherment. Steve Farmer controversially argues the signs are a non-linguistic symbol system, not writing at all.
The Indus Civilization declined abruptly around 1900 BC. The cause — climate change, invasion, or internal collapse — remains debated because the script can't be read. It is the only one of the world's four great ancient civilizations whose writing remains undeciphered.