On April 1, 2004, Gmail was launched with one gigabyte (GB) of storage space, a significantly higher amount than competitors offered at the time. On April 1, 2005, the first anniversary of Gmail, the limit was doubled to two gigabytes of storage.
When Gmail first launched in April 2004, it provided users with 1GB of storage for their email. This was significantly more storage than other email services at the time.