The great bath of Mahanjodaro was built from ____________.
More than a thousand settlements are now known from the Indus valley civilization. The civilization is known to have had a unity of culture, art, script, and technology. The largest city, Mohenjo Daro is thought to have reached a population of approximately 30,000, suggesting a total population of approximately 5 million people. Sun-dried bricks were used for infill, and burnt bricks were used for the drain and sewer linings. It would seem that a standard brick size was developed and used throughout the Indus cities.