Indus Valley Civilization We do know the cities were sophisticated enough to have brick walls surrounding them for protection against flooding from the Indus River.
Indus Economy Just like the other river valley civilizations, the Indus river valley people were mostly farmers. Traditional economy They did trade with Chinese and with Sumerians (Mesopotamians).
They used to make Seals andPottery’s for trade.
Some other Things! aThey were among the first to developsystem of uniform weights and measures.Their building bricks were very uniformmaking city planning easy.(2) This was the first civilization toincorporate urban sanitation systems.Personal hygiene seems to have been ahigh priority.