Answer:
The Answer is two
The building of highly functional multi-story buildings
Explanation:
The Indus civilization was between 25000 BCE to 1700 BCE. Lasting from 3300 BCE to 1300BCE, Indus civilization also called the Indus valley civilization was an ancient civilization located in what is today called Pakistan and some part of INDIA. It is the earliest know urban culture of the Indian subcontinent at the bronze Age, South Asia. At it peak, the Indus valley has a population of about five million people. Some called it the Harappa civilization. Large cities of Mohenjo-daro and Harappa were built in the area
Need more context. They imposed it because they think they are the superior untainted race. They believed they were the strongest smartest fastest humans and other races were inferior.
Im sorry im not good at history. ....but I feel bad dor yiu so id be morr yhan happy to help you with just about any other subject you need help with.....id help hou if I could