Precedentthe patterns history keeps Start the walk →
Entry 8 of 240Invention

The Indus Valley Cities

c. 2600 BCE/South Asia/Indus Valley Civilization
Today Pakistan and northwest India (Mohenjo-daro and Harappa)Span Indus Valley Civilization · c. 3300–1300 BCE

Across a territory larger than ancient Egypt and Mesopotamia combined, the Indus Valley Civilization built hundreds of cities of astonishing order — grid-planned streets, standardized fired bricks, covered sewers, and public baths. Yet archaeologists have found no palaces, no royal tombs, no grand temples, and no sign of an army: a sophisticated urban order seemingly without kings or war, its writing still undeciphered. It stands as proof that complex civilization did not have to be built the Mesopotamian way — around a strongman and a shrine.

◆ Worth knowingIndus weights were so precisely standardized that a stone weight from one city matches one from 500 miles away to within a fraction of a gram — a shared system enforced across an area larger than Western Europe, with no visible enforcer.
◆ The mechanismState formation & institutional founding

A durable new order — a state, an institution, a system of rule — is deliberately built and consolidated, outlasting the people who founded it.

Also: Trade-route shift · Institutional sclerosis

This is one stop on a walk through the whole human story, in order.

Precedent runs from 9500 BCE to the present in 240 short entries, a few a day. Under each one is the mechanism it's an instance of, and every earlier time you've walked past it. Free, no account needed.

Begin at 9500 BCE → Already walking? Open Precedent and you'll pick up where you left off.