20 years of Gmail – The Verge

1. 20 years of Gmail  The Verge
2. Google’s Gmail celebrates its 20th anniversary  The Associated Press
3. 20 Years Ago, Gmail Almost Never Happened. It All Came Down to 1 Customer Complaint  Inc.
4. Gmail revolutionized email 20 years ago. People thought it was Google’s April Fool’s Day joke  ABC News
5. Gmail Celebrates 20th Birthday And Enforces New Security Rules 1 April  Forbes

Source: 20 years of Gmail – The Verge