Civilizations & archaeology

The Indus Valley cities reach maturity

from c. 2,601 BCE to 1,901 BCE

From about 2600 BC the Indus or Harappan civilisation built large planned cities such as Mohenjo-daro and Harappa in what is now Pakistan, with grid-pattern streets, standardised fired bricks, covered drains, bathrooms in houses and a Great Bath. Its people traded with Mesopotamia and used a script that has never been deciphered, found on stamp seals showing unicorn-like animals. The civilisation covered over a million square kilometres, one of the largest of the ancient world. Without evident palaces, kings or large armies, its political system is a mystery. It declined after 1900 BC, probably due to changes in climate and rivers.

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This moment belongs to the Ancient civilizations (3,200 BCE to 500 CE), writing, cities and empires. You can also browse everything in the 27th century BCE.