Some 30,000 years ago, before writing was invented, there was one way for people to leave a record behind for future generations.
They would place their hand on cave walls and blow pigments over it, leaving behind a handprint. It was a successful strategy: Many of these haunting marks survive today.
Already a subscriber? Log in
Read the full story and more at $9.90/month
Get exclusive reports and insights with more than 500 subscriber-only articles every month
ST One Digital
$9.90/month
No contract
ST app access on 1 mobile device
Unlock these benefits
All subscriber-only content on ST app and straitstimes.com
Easy access any time via ST app on 1 mobile device
E-paper with 2-week archive so you won't miss out on content that matters to you
