The Indus Valley Civilization emerged around 3200-1600 BC along the Indus River valley. Some key aspects include:
- The cities of Harappa and Mohenjo-Daro had sophisticated urban planning with standardized bricks, buildings up to 3 stories, and well-developed water and drainage systems.
- They engaged in extensive trade of goods, including with Mesopotamia and what is now Iran and Afghanistan.
- The civilization declined around 1600 BC possibly due to floods and earthquakes, though the causes are not fully known.