30 years ago, a computer scientist proposed a brand new way of sharing information across a network of computers. Sir Tim Berners Lee invented new protocols of transferring data and new concepts on how to use the newly introduced network. Soon, brave entrepreneurs have started using this new level of digital reality to sell products to their customers - eCommerce was born in the mid-1990s, with the first thing sold online being Sting's "Ten Summoner's Tales" album. And it became one of the biggest phenomena ever, with an estimated sales volume of $2.5 trillion in 2018 alone.
Source: https://www.entrepreneurshipsecret.com/selling-online/