Eu lembro

foone (@Foone) tweetou: originally gmail was a semi-closed beta where you had to have an invite to create an account on it. if you had an account you had some number of invites to send out, which I think regenerated over time as you used it? https://t.co/LnDZvibv5M https://twitter.com/Foone/status/1149720077786210304?s=17