Google's Gmail celebrated its 20th anniversary, marking two decades since its launch on April Fool's Day by co-founders Larry Page and Sergey Brin. Initially thought to be a prank, Gmail revolutionized email services by offering 1 gigabyte of storage per account, a significant leap from the storage offered by other services at the time. Today, Gmail has approximately 1.8 billion active accounts with 15 gigabytes of free storage each. The service's success led to the development of other Google services like Google Maps, Google Docs, and the acquisition of YouTube. Gmail's introduction also marked the beginning of Google's strategy to use digital surveillance to sell more ads. Recently, Google began experimenting with AI enhancements for Gmail, including free AI cyber tools to combat online threats.