Bricks, Beads and Bones: The Harappa Civilisation

The One Thing

The Harappan or Indus Valley Civilisation was a diverse and highly organised Bronze Age urban society, known for planned cities, specialised crafts, long-distance trade and sophisticated water management. Because the Harappan Script remains undeciphered, its history must be reconstructed from archaeological evidence, while its political structure and transformation after about 1900 BCE remain subject to interpretation.

Chronology

Who and What

• Harappan Civilisation: The Bronze Age civilisation that developed in the Indus and adjoining regions, named after Harappa, one of its first identified sites. It was characterised by urban planning, craft production, trade and water management.
• Early Harappan Phase: The formative period, approximately 3300–2600 BCE, when settlements expanded and urban features began to appear.
• Mature Harappan Phase: The urban period, approximately 2600–1900 BCE, marked by planned cities, standardised bricks and weights, seals, specialised crafts and extensive exchange.
• Late Harappan Phase: The period after about 1900 BCE, when urban features declined or changed, regional variation increased and many populations moved towards smaller settlements.
• Urban Planning: The organised layout of settlements through streets, drainage systems, residential areas, public buildings and fortified sections.
• Citadel: A raised or fortified part of a settlement, often containing important public structures. Its precise social function remains debated.
• Lower Town: The larger residential and working area generally located outside or below the citadel.
• Great Bath: A large, carefully constructed water tank at Mohenjodaro, built with laid bricks and waterproofing material. It may have been used for special bathing or ritual purposes, although its exact function is uncertain.
• Drainage System: A network of covered and connected drains that carried wastewater away from houses and streets, demonstrating attention to sanitation and civic construction.
• Standardised Bricks: Bricks made according to commonly used proportions, often approximately 1:2:4 for thickness, width and length. Sizes were not identical at every site.
• Craft Specialisation: The production of particular goods by skilled workers, including pottery, beads, ornaments, metal objects, seals and shell products.
• Chanhudaro: A settlement associated with specialised bead-making, shell-working, metalworking and seal production.
• Lothal: A Harappan settlement in Gujarat known for craft production and bead-making. A structure there has been interpreted by some archaeologists as a dockyard.
• Dholavira: A major settlement in present-day Gujarat, notable for fortified divisions, distinctive architecture, reservoirs, channels and sophisticated water management suited to a relatively dry environment.
• Mohenjodaro: A major urban centre in present-day Sindh, Pakistan, famous for planned streets, drainage, the Great Bath and large public buildings.
• Harappa: A major settlement in present-day Punjab, Pakistan, after which the civilisation is named.
• Seals: Small objects, often made of steatite, bearing animal figures and script signs. They may have served purposes of identification, trade, administration or symbolism.
• Harappan Script: A still-undeciphered writing system found mainly on seals, pottery and other objects. Its language and exact meaning remain unknown because inscriptions are short and no clearly bilingual inscription has been found.
• Weights and Measures: Standardised stone weights, often arranged in regular numerical series, indicating controlled exchange and administrative practices.
• Bead-making: A specialised craft involving the cutting, shaping, drilling, polishing and sometimes heating of materials such as carnelian, shell, faience and stone.
• Faience: A glazed, non-clay material made from a mixture containing sand or quartz, used for beads, bangles, figurines and small ornaments.
• Archaeological Interpretation: The use of physical evidence, scientific methods and comparisons to reconstruct past societies while distinguishing direct evidence, reasonable inference and speculation.
• Mortimer Wheeler’s Interpretation: An earlier interpretation that emphasised strong central authority and proposed invasion as a cause of decline. Much of this view is now questioned because the evidence is limited or has been reinterpreted.
• Burial Practices: The ways bodies were placed in graves with selected objects, providing clues about beliefs, identity and social differences. They do not provide a complete picture of social hierarchy.
• Subsistence: The ways people obtained food, including cultivation of wheat, barley, pulses, sesame and, in some regions, possibly millets and rice, together with the herding or use of cattle, buffalo, sheep, goats, pigs, fish and other animals.
• Long-distance Trade: Exchange across distant regions, evidenced by the movement of copper, shell, lapis lazuli, carnelian and other stones.
• Mesopotamian References: Ancient Mesopotamian records mentioning Meluhha, a region often associated with the Harappan area, indicating contact between the two regions.
• Cemetery H Culture: A Late Harappan cultural phase, especially in the Punjab region, identified through changes in pottery, burial customs and settlement patterns.
• Decline or Transformation: The post-1900 BCE reduction of large urban centres and changes in material culture, settlement locations and economic organisation, probably resulting from several interacting factors.

Causes and Consequences

• Shared construction practices contributed to urban coordination. Planned streets, baked-brick structures, wells, drains, reservoirs, citadels, lower towns and public buildings indicate organised settlement design. The approximate 1:2:4 brick proportion suggests shared construction practices, although it does not prove that all settlements were controlled by a single centralised empire.

• Water management responded to local environmental conditions. Mohenjodaro’s drainage system and Great Bath demonstrate organised civic construction and controlled water use. Dholavira’s reservoirs and channels show adaptation to a relatively dry environment. These systems indicate technical knowledge and collective organisation, although the precise institutions responsible remain uncertain.

• Craft specialisation created complex economic relationships. Evidence such as bead drills, furnaces, slag, unfinished objects, shells, stone pieces and finished ornaments demonstrates specialised production. At Chanhudaro, bead-making, shell-working, metalworking and seal production were particularly important. Lothal was also associated with craft production and bead-making.

• The production of carnelian beads required several stages of skilled labour. Carnelian was shaped, drilled, polished and sometimes heat-treated to create a deep red colour. Faience, made from a mixture containing sand or quartz and covered with a glaze, was used for beads, bangles, figurines and small ornaments. These processes reveal technological knowledge and divisions of labour.

• Access to distant raw materials encouraged long-distance exchange. Copper came from Rajasthan and other regions, lapis lazuli from Afghanistan, shell from coastal areas and carnelian from Gujarat. Mesopotamian references to Meluhha provide additional evidence for contact between the Harappan region and Mesopotamia.

• Seals, weights and repeated designs indicate regulation and communication. Harappan seals commonly depicted a unicorn-like figure, bull, elephant, rhinoceros or tiger alongside short inscriptions. Standardised weights and measures, often arranged in regular numerical series, suggest controlled exchange and administrative practices. However, these features alone do not demonstrate the existence of a single centralised empire.

• The undeciphered Harappan Script limits historical reconstruction. Since the script has not been deciphered, and inscriptions are generally short without a clearly bilingual example, the language, administrative practices and political authority of the civilisation remain uncertain. Archaeologists must therefore rely on stratigraphy, pottery sequences, radiocarbon dating, material analysis, botanical remains, animal bones and settlement patterns.

• Social differences probably existed but cannot be reduced to a simple model of kings and subjects. Harappan houses varied in size and design, and some settlements contained large public buildings or fortified areas. Burials commonly involved extended bodies placed in pits, sometimes with pottery or ornaments, but grave goods were not uniformly rich. The absence of clearly identified palaces, royal tombs and written records of rulers means that social hierarchy must be reconstructed cautiously. Large buildings cannot automatically be identified as palaces, temples or royal residences.

• Subsistence varied across regions. Harappan agriculture included wheat, barley, pulses and sesame, with possible cultivation of millets and rice in some areas. Animal remains show the use of cattle, buffalo, sheep, goats, pigs, fish and other animals. Scholars continue to debate the extent of domestication and the role of meat in the diet.

• Regional differences accompanied shared cultural features. Although settlements across a wide area used related forms of bricks, seals, weights and urban organisation, differences in architecture, subsistence, craft production and settlement patterns show that Harappan society was diverse and changed over time.

• Urban decline after about 1900 BCE resulted from interacting factors rather than one single cause. Possible factors include changing river courses, weakening monsoon conditions, floods, ecological stress, reduced trade, resource problems and shifts in settlement patterns. These factors may have weakened large urban centres and encouraged movement towards smaller rural settlements.

• The invasion theory is not supported as a complete explanation. Mortimer Wheeler’s interpretation emphasised strong central authority and suggested invasion as a cause of decline, but there is no conclusive evidence that a large-scale foreign invasion was the single cause of Harappan urban decline.

• The civilisation transformed rather than disappearing suddenly. After about 1900 BCE, many practices, communities and regional traditions continued in altered forms. The Cemetery H Culture illustrates such regional change through developments in pottery, burial customs and settlement patterns.

What Gets Asked

• How did planned streets, drainage systems, standardised bricks, wells, reservoirs and public buildings demonstrate urban organisation, and why do they not conclusively prove a single centralised empire?
• What can craft evidence from Chanhudaro, Lothal and the production of carnelian beads and faience reveal about labour specialisation and technological knowledge?
• How do seals, the Harappan Script, standardised weights and Mesopotamian references to Meluhha provide evidence for administration, communication and long-distance trade, and what are their limitations?
• What do houses, citadels, lower towns, public buildings and burial practices suggest about social differences, and why is it unsafe to assume the existence of kings, palaces or rigid social classes?
• How did subsistence practices, animal remains and access to materials such as copper, lapis lazuli, shell and carnelian vary across the civilisation?
• Why should the post-1900 BCE transformation be explained through changing river courses, monsoon conditions, floods, ecological stress, trade, resource problems and settlement shifts rather than Mortimer Wheeler’s invasion theory alone?