Location: Around 5,000 years ago, a civilization developed along the Indus River alluvial plain (floodplain), in South Asia, due to the large amount of fertile land and it was proximity to a water source. In the 1920s, under layers of land and mounds of dirt, archaeologists discovered the remains of 4,000 year old cities, which existed at the same time as the Egyptians and Mesopotamians. Some of these cities included Harappa and Mohenjo-daro.
