Give two examples of the height of Harappan Societies in South Asia (2500-2000 B. C. E)

Harappan Societies reached their heights around 2100 B. C. E, due to their advanced masonry and weaponry skills. Plus, they were good at trading resources with Mesopotamia. However little information is known of these societies because of the lack of their remnaents and almost no written records written by any of their people