Some experts question whether the symbols represent a language at all ... we do know some details about the Indus civilization, also known as Harappan, which flourished for half a millennium ...

The Indus Valley Civilization also known as the Harappan Civilization ... Most inscriptions are brief, ranging from five to six symbols, with the longest known inscription containing 34 symbols.

The Indus Valley civilisation, also known as the Harappan, lived 5,300 years ago ... Made up of signs and symbols, the writing consists of around 4,000 short inscriptions, most of them engraved ...