to about 1500 b.c. Indus Valley Civilization, a lso known as Harappan Civilization, was the first major civilization in south Asia, which spread across a vast area of land in present day India and Pakistan. to the eighteenth century B.C.E. At its height, its geographical reach exceeded that of Egypt or Mesopotamia. " The Indus River Valley civilization, also known as the Harappan civilization after the first site of their discovery, is a Bronze Age culture that spanned roughly from 3300 to … 40 Important Facts About the Indus Valley Civilization. Features of Indus Valley Civilization. The Indus Valley Civilization (IVC), was an ancient civilization thriving along the lower Indus River and the Ghaggar River-Hakra River in what is now Pakistan and western India from the twenty-eighth century B.C.E. They used water in religious ceremonies. They were … However, we know that the Harrappan society was established near the Indus River and used irrigation to help strengthen their agricultural society. They also gave us the number 0 and parts of numbers like decimals. The sensational discoveries made at Harappa in West Punjab and Mohenjodaro in Sind have revolutionised our idea of ancient Indian history. The rich and poor varied significantly from one another as well (ruled by class). On the valleys of river Indus. it lies in the valley of the Indus River, the northwestern portion of the Indian subcontinent (present-day Pakistan). They had different sized houses along with advanced water and sewage systems. They made boats to travel up and down the rivers. Ancient India during the Harappan era had one of the largest populations in the ancient world, far greater than the Middle East or Europe. To the Indus people, their river was The King River. They gave us the first signs of geometry and algebra. The time period of mature Indus Valley Civilization is estimated between 2700 BC- 1900 BC. Following a custom in prehistoric studies, the civilization is called as Harappan named after Harappa. The Indus river valley contributed mostly math. The Indus Valley Civilization is named after the Indus river system in whose alluvial fields the early sites of the civilization were distinguished and excavated. They were the first to have weight measurement systems. Indus Valley cities like Harappa and Mohenjo-Daro began as riverside farming villages about 5,000 years ago. The Indus valley civilization, flourished from about 2500 b.c. From the meagre evidence it may be concluded that the civilization represented by these two cities commonly known as the Indus Valley Civilization belonged to the first half of the third millennium B.C. Indus valley civilization." Indus valley civilization is a rich civilization and one of the most important civilizations that existed in the world. It is often compared with the civilizations of Egypt and Mesopotamia as being one of … The Indus people needed river water to drink, wash and to irrigate their fields. The Columbia Encyclopedia. The Indus Valley Civilization- named for the Indus River basin which supported it - was located in what is now modern-day Pakistan and Northwest India.