History

History of the Indus Valley Civilization



The Indus Valley Civilization came from the Sumerian Civilization. Through the years, their population increased from 40,000 to 60,000. They were found in Africa and they live in a permanent area. The people that are part of this civilization is called "Dravidians". They had two major cities, Harappa and Mohenjo-Daro. The Priest-king are the ones that live in the upper city and the traders, artisans, slaves and farmers live in the lower city. This civilization lasted from 3300-1300 BCE and their mature period was from 2600-1900 BCE. 

Science and Technology

Science and Technology


The Dravidians had major contributions in terms of 

technology. They developed the irrigation system which 

was introduced by the Sumerians. The irrigation system 

is still being used today by the farmers. The Dravidians 

also developed a system of uniform weights and 

measurements. Techniques in metallurgy were also 

developed by the Dravidians. They produced copper, 

bronze led and tin.