Larkana District, Sindh, on the right bank of the Indus, Pakistan
Mohenjo-daro
2500–1500 BC (the listing’s span for the flourishing city)
On a mound above the Indus, a brick tank still holds its shape, and the streets below it still show their drains. The listing puts the city’s flourishing between 2500 and 1500 BC. Nobody can yet read the seals.
Why this is extraordinary
Mohenjo-daro sits on the right bank of the Indus, in Sindh, about 28 kilometres from Larkana. The World Heritage listing calls it the best preserved urban settlement in South Asia from the beginning of the third millennium BC, and the metropolis of a civilisation that flourished between 2500 and 1500 BC. Most of what you walk through is baked brick. Streets in the lower town meet at right angles. Stand at a corner and one lane crosses another square, a grid laid out so the drains and the houses can share a block. Drains run under them. Wells served the houses. That civic kit, not a palace with a name on the door, is what made the place famous after it was opened in 1922.
On the western mound, the citadel, a brick tank is still the clearest single building. A published description gives it about 12 metres from north to south, about 7 metres wide, and a maximum depth of about 2.4 metres, lined so that water would stay in it. Bitumen, a natural tar, is the waterproofing the accounts name. Steps go down into the tank. Rooms and a well sit beside it. People have read it as a place for ritual bathing. Nothing written in a language we can read says so. The script on the seals is still undeciphered, and the inscriptions are short.
Just beside that tank is a huge brick platform that early diggers called a granary. The bays and the air ducts looked, to them, like a place to dry grain. A later look found no stored grain to match the name, and suggested the building may have been a hall whose job we do not know. The nickname stayed. The grain did not turn up.
A Buddhist stupa of unbaked brick was set on the citadel in the 2nd century AD, long after the brick city had stopped being a metropolis. The mound you see is two ages stacked. A planned city of the Indus, with water managed at the scale of a neighbourhood, does not need a deciphered king-list to be real. The open questions are what the bath was for, what the platform called a granary held, and why the great cities of this civilisation thinned out inside the listing’s long span. A missing grain changes the name of the platform. It leaves the bricks where they are.
Why it matters
If the bath was ritual, the city’s most careful building was about purity, not storage. If the platform next to it was never a granary, a century of maps has been labelling a hall by a guess. The script, if it is ever read, would be the first time these people introduce themselves.
The citadel is the west mound. The lower town spreads east, in blocks. A small bronze and a bearded stone bust are the faces most often shown. Three seals in a New Delhi case stand for the unread signs, and the file does not say those three came from this mound. The pin is the ruins, not the whole Indus world. Harappa, by an old bed of the Ravi, is the city that gave the civilisation its name. Dholavira is another brick city of the same civilisation, with its own plan.
Photo tour
5 photographs, unedited. On a phone, swipe the row. Choose one to look closely.
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What is still unexplained
These sit beside the consensus account, with the same visual weight. None of them is marked solved.
Location and dating
- Location
- Right bank of the Indus, Larkana District, Sindh, Pakistan. The pin is the citadel and the bath, inside the ruined city.
- Period label
- Current consensus — open to revision The listing’s flourishing span is 2500 to 1500 BC. The mature brick city is often drawn inside that, and the Buddhist stupa on the mound is a reuse in the 2nd century AD. Current consensus on an Indus metropolis of baked brick — open on the bath’s purpose, the platform’s function, and the cause of the thinning.
- How this dating was done
- The date is archaeological, from the brick, the seals, and the way this mound sits in the wider Indus sequence, not from a written year on a wall. The listing states the span. Radiocarbon dates once-living material, and it has been used on related material across the civilisation. This room does not replace the listing’s dates with one laboratory number.
- What could change it
- A readable inscription that names a king and a year, or a sealed deposit that dates the bath apart from the streets, would tighten what is now a span of a thousand years.
What is actually there
- Baked-brick lower town, streets at right angles, wells and covered drains.
- Great Bath about 12 by 7 metres, depth about 2.4 metres, bitumen lining.
- A neighbouring platform was called a granary. No grain was found to match the name.
- Seals carry a short script that is still unread.
- A Buddhist stupa was added on the citadel in the 2nd century AD.
- The city was opened to archaeology in 1922.
Open questions
| Question | Status |
|---|---|
| Was the bath a rite, or only a tank? | Open. The waterproofing is real. The purpose is a reading. |
| What was the platform called a granary? | Open. The plan is monumental. The grain is missing. |
| Why did the metropolis empty? | Open. River shifts, climate, and trade are all argued. The listing’s span is wide on purpose. |
The current narrative
Where publication stands today. It is the best-supported reading, and it is open to revision. It is not a verdict.
The current narrative — open to revision
An Indus metropolis of brick and drains
Mohenjo-daro was a major city of the Indus civilisation, built mostly in baked brick, with a planned lower town and a citadel. The bath, the wells, and the drains are civic waterworks of that city. The listing’s span, 2500 to 1500 BC, is the frame.
What supports this
- The listing describes right-angle streets, sanitation, wells, and public baths, and dates the flourishing to 2500–1500 BC.
- The tank’s published size, about 12 by 7 metres and 2.4 metres deep, with bitumen, is a real structure, not a sketch.
- Seals and standardised craft tie the mound to the wider Indus world.
- The stupa is explicitly later, 2nd century AD, so the brick city is not being dated by the Buddhist reuse.
What pushes back
- No readable text names the builders or says what the bath was for.
- Published figures for the city’s area do not agree, so this room prints none.
- The granary label shows how fast a plan can be over-read.
What would settle it
The city is not in doubt. The span is wide, and several famous labels are weaker than the bricks. That is a good city to stand on, and a bad one to over-explain.
Emerging narratives
Other published readings. Each may be right. None is adopted here unless the evidence carries it.
An emerging narrative
The tank was for a rite
The Great Bath was a place of ritual washing, the closest thing the citadel has to a temple, in a culture that cared more about cleanliness than about royal portraiture.
What supports this
- The tank is public, waterproofed, and placed on the citadel, with rooms that could have served people coming to it.
- The city is full of wells and house baths, so water was already a habit, and a great tank could be the public form of that habit.
What pushes back
- Waterproof brick is also what you build when you simply want a pool that does not leak.
- No image and no text in a known language assigns the tank to a god.
What would settle it
Plausible, and it may be right. It is ahead of the evidence by one step, the step that turns a careful tank into a rite.
An emerging narrative
One flood or one invasion ended it
The metropolis was destroyed in a single blow, a river flood or an attack, and the empty streets are that day.
What supports this
- The Indus moves, and a city on its bank can lose its water or take a flood.
- The mound was abandoned as a great city. Something ended that use.
What pushes back
- The listing gives a span of a thousand years, not a single destruction layer this room can point to.
- Other Indus cities changed in the same broad centuries, which a flood at one bend of the river does not explain.
- The stupa shows the mound was still a place people built on, much later.
What would settle it
A changing river can hurt a city. A single catastrophe, told as the whole story of the civilisation, asks for a layer the streets have not produced here.
Should the current view be reevaluated?
Consensus holds well
The Indus city, the brick plan, and the listing’s span hold. The bath’s rite, the granary’s name, and the cause of the end are open labels on a real place.
What drives this
- Right-angle streets, wells, and drains in baked brick.
- A measured tank with bitumen, on the citadel.
- An unread script of short inscriptions.
- A 2nd-century stupa that is honestly later than the city.
This is the museum’s own weighing of the evidence. It is not a visitor vote, and it is separate from the slider.
Weigh it yourself
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If the contested reading is right
What would follow if a reading that is not the consensus turned out to be true, and what could settle it. This explains the stakes. It does not adopt the reading.
The bath was a rite of washing
The citadel’s centrepiece would be religious, and the house baths would look like the same idea scaled down. The engineering would be unchanged.
Why it is still worth a test
Any seal or fitting from the tank rooms that shows a repeated rite, published with its level.
The platform was never a store
Maps and textbooks lose a granary and gain an unknown public building. The city’s skill with brick stays.
Why it is still worth a test
Residues from the floor, or the absence of them, from the passages that were called air ducts.
Sources
- Archaeological Ruins at Moenjodaro UNESCO World Heritage Centre
- Indus Civilization, in Encyclopedia of Archaeology The bath measurements, the missing grain, and the undeciphered script
Image credits
- The Great Bath, from one end. The tank is brick. The steps are at the far end of this frame, and the near end is a low brick edge with a rope across it. The listing places the city’s flourishing between 2500 and 1500 BC. . Saqib Qayyum, CC BY-SA 3.0. Shown unedited.
- Another walk around the bath, with the stair and the spread of walls. The scale is a public building, not a household tub. . Soban, CC BY-SA 3.0. Shown unedited.
- The small bronze called the dancing girl, found at Mohenjo-daro and now in New Delhi. The pose is confident. The name is modern. No caption on the metal says she is dancing. . Gary Todd, CC0. Shown unedited.
- The stone bust called the priest-king, from this city. The trefoil cloak and the fillet are carved. Priest and king are both guesses. The break across the face is damage, not a second style. . Mamoon Mengal, CC BY-SA 1.0. Shown unedited.
- Three Indus seals in the National Museum, New Delhi. The file places them in the Harappan gallery and does not name Mohenjo-daro as their findspot. The short line of signs above the animals is the script this room cannot read. . Gary Todd, CC0. Shown unedited.