Indus River Valley civilizations (article) | Khan Academy
https://www.khanacademy.org:443/humanities/world-history/world-history-beginnings/ancient-india/a/the-indus-river-valley-civilizations
WEBThe Indus River Valley Civilization, 3300-1300 BCE, also known as the Harappan Civilization, extended from modern-day northeast Afghanistan to Pakistan and northwest India. Important innovations of this civilization include standardized weights and measures, seal carving, and metallurgy with copper, bronze, lead, and tin.
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