From barter to blockchain: A history of money
August 03, 2017 at 15:05 PM EDT
The Big Bang brought the universe into existence 13.7 billion years ago. Life first appeared on our planet 3.8 billion years ago. Earth witnessed a hominid species, Home erectus, walking upright for the first time 1.9 million years ago. And, 7,000 years ago, money was invented. Read More
