Indus Valley Civilization was an ancient civilization about (3300 BC to 1700 BC) that thrived in the Indus and Ghaggar-Hakra river valleys, now in Pakistan, along with the northwestern parts of India, Afghanistan and Turkmenistan. The civilization, which is also known as Harappan Civilization, lasted from 3300 BC to 1700 BC. The discovery of the Ancient Indus River Valley Civilization was made, when the Harappan city, the first city of Indus Valley, was excavated. Geographically, the civilization was spread over an area of some 1,260,000 km, making it the largest ancient civilization in the world.
Discovery
The first description of the ruins of Harappa is found in the Narrative of Various Journeys in Balochistan, Afghanistan and Punjab of Charles Masson. It dates back to the period of 1826 to 1838. In 1857, the British engineers accidentally used bricks from the Harappa ruins for building the East Indian Railway line between Karachi and Lahore. In the year 1912, J. Fleet discovered Harappan seals. This incident led to an excavation campaign under Sir John Hubert Marshall in 1921-1922.
Cities
Approximately 1052 cities and settlements belonging to the Indus Valley Civilization have been excavated till date, mainly in the general region of the Ghaggar and Indus Rivers and their tributaries. The artifacts discovered in these cities suggest a sophisticated and technologically advanced urban culture. The concept of urban planning is also widely evident. There is also the existence of the first urban sanitation systems in the world. the sewerage and drainage system found in the each and every city of Indus Valley comes across as even more efficient than those in some areas of Pakistan and India today.
Science
The people of Indus Valley are believed to be amongst the first to develop a system of uniform weights and measures. Their smallest division was approximately 1.704 mm. Decimal division of measurement was used for all practical purposes. The brick weights were in a perfect ratio of 4:2:1. The numerous inventions of the Indus River Valley Civilization include an instrument used for measuring whole sections of the horizon and the tidal dock. The people of Harappa evolved new techniques in metallurgy and produced copper, bronze, lead and tin. They also had the knowledge of proto-dentistry and the touchstone technique of gold testing.
Arts and Culture
Various sculptures, seals, pottery, gold jewelry and figurines in terracotta, bronze and steatite, etc, have been excavated from the sites of the Ancient Indus Valley Civilization. Other crafts that have been unearthed include shell works, ceramics, agate, glazed steatite bead making, special kind of combs, etc. There is also evidence of seals, toys, games and stringed musical instruments in the Indus Valley.
Trade and Transportation
Trade seems to the major occupation of the people of the Harappan Civilization. The main forms of transport include bullock carts and boats. Archaeologists have also discovered an enormous, dredged canal and docking facility at the coastal city of Lothal. The pottery, seals, figurines, ornaments, etc, of the civilization show great similarities with those of Central Asia and the Iranian plateau, indicating trade with them. Then, there are signs of maritime trade network between the Harappan and Mesopotamian civilizations also.
Agriculture
The major cultivated cereal crop was naked six-row barley, a crop derived from two-row barley. However, not much information is available on the farmers and their agricultural methods.
Symbol System
As many as 400 distinct Indus symbols have been found on seals, ceramic pots and other materials excavated from the Indus Valley. Typical Indus inscriptions are, at the most, four or five characters in length and quite small. The longest inscription on any object is 26 symbols long. Indus symbols have been found on ritual objects also, many of which were mass-produced.
Religion
The large number of figurines found in the Indus Valley Civilization suggests that the Harappan people worshipped a Mother Goddess, who symbolized fertility. Some of the seals of that time also have the swastikas engraved on them. Then, there are some others in which a figure is seated in a yoga-like posture and is surrounded by animals. The figure is quite similar to that of Lord Pashupati, the Lord of Creatures.