About 2600 B.C. civilization emerged in The Indus Valley, present day Pakistan. The civilization flourished for over 700 years.
In the 1920s, we discovered all of what we know today.
No records were found including names of queens and kings, taxes, literature, or accounts of famous victories.
It covered the largest area of any civilization until the Rise of Persia that came 1,000 years later.

Indus River Valley Civilization