Collection of facts about the Indus Valley Civilization

This post is a collection of facts about the Indus Valley Civilization (c. 3300 - 1300 BC). There are 7 facts listed below. Source: Wikipedia

• Based in northwestern South Asia
• Modern-day Pakistan, northwestern India, northeastern Afghanistan
• Alluvial plains of the Indus River
• Associated Harappa site and Harappan culture
• Elaborate urban planning, water supply systems, metallurgy
• Indus script is undeciphered today
• Possible relation to Dravidian or Elamo-Dravidian language family