Zuckerberg wrote a program called "Facemash" in 2003 while attending Harvard University as a sophomore (second year student).
According to The Harvard Crimson, the site was comparable to Hot or Not and used "photos compiled from the online facebooks of nine Houses, placing two next to each other at a time and asking users to choose the “hotter” person".
In late 2007, Facebook had 100,000 business pages (pages which allowed companies to promote themselves and attract customers).
These started as group pages, but a new concept called company pages was planned.
Since 2006, anyone who claims to be at least 13 years old has been allowed to become a registered user of Facebook, though variations exist in the minimum age requirement, depending on applicable local laws.
The Facebook name comes from the face book directories often given to United States university students.
I can do it better than they can, and I can do it in a week." In January 2004, Zuckerberg began writing code for a new website, known as "The Facebook", with the inspiration coming from an editorial in the Crimson about Facemash, stating that "It is clear that the technology needed to create a centralized Website is readily available ...
A company representative called the milestone a "quiet revolution." In November 2010, based on Second Market Inc.
(an exchange for privately held companies' shares), Facebook's value was billion.
Additionally, users can complain about or block unpleasant people.
Facebook has more than 2 billion monthly active users as of June 2017.