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5000 BCE
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South Asia · Proto-Urban Culture

Indus Valley – Early Phase

c. 3300–2600 BCE

Overview

Proto-urban regionalization along the Indus and Ghaggar-Hakra systems. Kot Diji, Amri, and Ravi cultures develop fortified settlements and inter-regional trade networks.

Indus Valley Civilization

One of the three earliest urban Bronze Age civilizations (alongside Mesopotamia and Egypt), spanning from Neolithic Mehrgarh (c. 7000 BCE) through five cultural phases to Post-Harappan ceramic traditions (c. 1000 BCE). At its Mature phase (2600–1900 BCE) it covered ~1.26 million km² with grid-planned cities, advanced sanitation, standardized baked bricks and weights, an undeciphered script, and extensive trade with Mesopotamia. Its apparent lack of palaces, royal tombs, and militarized iconography distinguishes it as more heterarchical than contemporary states. Climate-driven aridification of the Ghaggar-Hakra river system triggered progressive de-urbanization after 1900 BCE, leading to regional Late Harappan cultures and ultimately to the Ochre Coloured Pottery (a Chalcolithic successor culture, c. 2000–1300 BCE) and Painted Grey Ware traditions of the early Iron Age.

Territory Phases

  1. Pre-Harappan Farming Communities5000 BCE – 3300 BCE

    Scattered Neolithic farming villages in the Bolan Pass and Kacchi Plain piedmont zone by 5000 BCE. Pre-urban — no 'Indus Valley' civilization yet. Mehrgarh is the dominant settlement.

  2. Pre-Harappan Communities4000 BCE – 3300 BCE

    Expanding farming communities along the upper Indus tributaries and Kacchi Plain. Mehrgarh is now Chalcolithic (ceramic, early copper). Hakra-related scattered settlements spreading east.

  3. Indus Valley – Early Phase3300 BCE – 2600 BCE

    Initial urbanization along the Indus and Ghaggar-Hakra river valleys. Regional cultures including Ravi, Hakra, Kot Diji and Amri-Nal develop proto-urban settlements with trade networks.

Key Events

Emergence of proto-urban centers (Kot Diji phase)2800 BCE

Kot Diji, Sindh, Pakistan

Construction of fortified settlements with standardized mud-brick platforms and early craft workshops at Kot Diji and contemporaneous sites. Represents the shift from villages to planned proto-cities with inter-regional trade and beginning of the diagnostic Kot Diji ceramic horizon.

Related Civilisations

Predecessors

Mehrgarh

Sources

  1. Hand-drawn polygon
  2. Kenoyer, J.M. (1998) Ancient Cities of the Indus Valley Civilization
  3. Possehl, G.L. (2002) The Indus Civilization: A Contemporary Perspective
  4. Allchin, B. & Allchin, R. (1982) The Rise of Civilization in India and Pakistan
  5. Wheeler, Sir Mortimer (1968) The Indus Civilization (3rd ed.)
  6. Kenoyer, Jonathan Mark (1991) The Indus Valley Tradition of Pakistan and Western India
  7. Possehl, Gregory L., ed. (1993) Harappan Civilization: A Recent Perspective (rev. ed.)
  8. Mughal, M. Rafique (1990) The Harappan Settlement Systems and Patterns in the Greater Indus Valley
  9. Shaffer, Jim G. and Diane A. Lichtenstein (1999) Migration, Philology and South Asian Archaeology