The History Of The Facebook ID

How does Facebook generate your ID when you join the site? While new users of the site aren’t aware of the use of numerical IDs, since the beginning Facebook’s profile system has been based on IDs to identify each user. While the site first began by auto-incrementing IDs, the model that the site has used for generating these IDs has changed over time. The history of the Facebook ID isn’t a regularly discussed topic among most users, however one Quora user posted the question and Justin Mitchell posted a great response.

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