The Indus Valley Civilization appeared 5,300 years ago in present-day northwest India and Pakistan.
Populated by farmers and traders, the city flourished for centuries.
The Indus script is made up of a mix of signs and symbols.
Photo: ALFGRN viaWikimedia Commons(CC BY-SA 2.0)
Researchers have turned to machine learning, hoping newer technologies can help them solve this mystery.
Our understanding is that the script is structured and there is an underlying logic in the writing.
Photo: Ismoon viaWikimedia Commons(Public domain)
Photo: Ismoon viaWikimedia Commons(Public domain)
