Indus Valley Civilization (2500?-1700 BC), earliest known civilization of South Asia, corresponding to the Bronze Age cultures of ancient Egypt, Mesopotamia, and Crete. The remains of settlements belonging to this culture have been found throughout the Indus River valley in Pakistan, westward along the coast to the Iranian border, in India's northwestern states as far east as New Delhi, and on the Oxus River in northern Afghanistan. The Indus Valley civilization encompasses one of the largest geographical areas covered by a single Bronze Age culture.
Excavated settlements reveal blocks of mud-brick buildings separated by streets, and the cities, such as Mohenjo-Daro and Harappa, are dominated by large public buildings. These buildings were at one time identified as colleges, temples, granaries, and palaces, but later research has not confirmed such interpretations. The cities are usually divided into two distinctive groups of buildings, one of which may be enclosed by a wall.
The work of Indus Valley artisans shows a high degree of craft specialization. Characteristic artifacts include a distinctive black-on-red pottery, ceramic toys and figurines, etched carnelian beads, metal (bronze, silver, and gold) ornaments and tools, and stamp seals with an undeciphered script. Unfortunately, the nature of the social organization in this complex culture still evades complete interpretation.
Sometime after 2000 bc, complex ecological changes occurred in the Indus Valley area, forcing abandonment of many settlements and altering the basic characteristics of the civilization. Late Indus Valley culture is known mainly from excavated small farming villages. Artifacts associated with these sites are stylistically similar to earlier types but show more regional variation.
Geography
The Indus Valley Civilization encompassed most of Pakistan as well as the western states of India, extending from Balochistan to Gujarat, with an upward reach to Punjab from east of the river Jhelum to Rupar on the upper Sutlej, recently, Indus sites have been discovered in Pakistan's NW Frontier Province as well. Coastal settlements extended from Sutkagan in Western Baluchistan to Lothal in Gujarat. An Indus Valley site has been found on the Oxus river at Shortughai in northern Afghanistan, in the Gomal river valley in north-west Pakistan, at Manda on the Beas River near Jammu, India, and at Alamgirpur on the Hindon River, only 28 km from Delhi. Indus Valley sites have been found most often on rivers, but also on the ancient sea-coast, for example Balakot, and on islands, for example, Dholavira.
There is evidence of dry river beds overlapping with the Hakra channel in Pakistan and the seasonal Ghaggar River in India. Many Indus Valley (or Harappan) sites have been discovered along the Ghaggar-Hakra beds. Among them are: Rupar, Rakhigarhi, Sothi, Kalibangan, and Ganwariwala. According to J. G. Shaffer and D. A. Lichtenstein the Harappan Civilization "is a fusion of the Bagor, Hakra, and Koti Dij traditions or 'ethnic groups' in the Ghaggar-Hakra valley on the borders of India and Pakistan."
According to some archaeologists over 500 Harappan sites have been discovered along the dried up river beds of the Ghaggar-Hakra River and its tributaries, in contrast to only about 100 along the Indus and its tributaries, consequently, in their opinion, the appellation Indus Ghaggar-Hakra civilisation or Indus-Saraswati civilisation is justified. However, these arguments are disputed by other archaeologists who state that the Ghaggar-Hakra desert area has been left untouched by settlements and agriculture since the end of the Indus period and hence shows more sites than found in the alluvium of the Indus valley, second, that the number of Harappan sites along the Ghaggar-Hakra river beds have been exaggerated and that the Ghaggar-Hakra, when it existed, was a tributary of the Indus, so the new nomenclature is redundant.
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