The inhabitants of Mohenjo-daro also understood their environment. Since the city was located just west of the Indus River, they built impressive flooding defence platforms and drainage systems to protect themselves from annual floods. Moreover, they were key players in a sea-trade network that extended from Central Asia to the Middle East. For centuries, they produced intricately carved pieces of pottery, jewellery, figurines and other items that ended up everywhere from Mesopotamia to present-day Oman.
