Harappan cities were developed about 4700 years ago.

When did Harappan cities develop?

As this was the first city to be discovered, all other sites from where similar buildings (and other things) were found were described as Harappan. These cities developed about 4700 years ago. Very often, old buildings are pulled down to make way for new construction.

What did the Harappan cities develop?

The Indus River Valley Civilization, also known as Harappan civilization, developed the first accurate system of standardized weights and measures, some as accurate as to 1.6 mm. Harappans created sculpture, seals, pottery, and jewelry from materials, such as terracotta, metal, and stone.