Facebook is globally, the most used social media and social networking service.
Over the years it has become such a Phenomenon it has shown influences to the economy, society, emotion health, culture, politics and even the environment.
Mark Zuckerberg built a website called "Facemash" in 2003 while attending Harvard University.
The site was comparable to Hot or Not and used "photos compiled from the online face books of nine Houses, placing two next to each other at a time and asking users to choose the "hotter" person". Facemash attracted 450 visitors and 22,000 photo-views in its first four.
The site was sent to several campus group list servers, but was shut down a few days later by Harvard administration. Zuckerberg faced expulsion and was charged with breaching security, violating copyrights and violating individual privacy. Ultimately, the charges were dropped.
A "face book" is a student directory featuring photos and personal information.
In 2003, Harvard had only a paper version along with private online directories. Zuckerberg told The Harvard Crimson:
"Everyone's been talking a lot about a universal face book within Harvard.
I think it's kind of silly that it would take the University a couple of years to get around to it.
I can do it better than they can, and I can do it in a week."
In January 2004, Zuckerberg coded a new website, known as "TheFacebook", inspired by a Crimson editorial about Facemash, stating: "It is clear that the technology needed to create a centralized Website is readily available ... the benefits are many." Zuckerberg met with Harvard student Eduardo Saverin, and each of them agreed to invest $1,000 in the site. On February 4, 2004, Zuckerberg launched "TheFacebook", originally located at thefacebook.com.
Membership was initially restricted to students of Harvard College. Within a month, more than half the undergraduates had registered. Dustin Moskovitz, Andrew McCollum, and Chris Hughes joined Zuckerberg to help manage the growth of the website.
March 2004 : Facebook expanded to Columbia, Stanford and Yale. It then became available to all Ivy League colleges, Boston University, NYU, MIT, and successively most universities in the United States and Canada.
June 2004: It received its first investment later that month from PayPal co-founder Peter Thiel.
May 2005 : the company dropped "the" from its name after purchasing the domain name Facebook.com for US$200,000. The domain had belonged to AboutFace Corporation. Accel Partners invested $12.7 million in Facebook, and Jim Breyer added $1 million of his own money. A high-school version of the site also launched in September 2005. Eligibility expanded to include employees of several companies, including Apple Inc. and Microsoft.
September 2006 : Facebook opened to everyone at least 13 years old with a valid email address.
October 2007: Microsoft announced that it had purchased a 1.6% share of Facebook for $240 million, giving Facebook a total implied value of around $15 billion. Microsoft's purchase included rights to place international advertisements. By late 2007, Facebook had 100,000 pages on which companies promoted themselves. Organization pages began rolling out in May 2009.
On April 19 Facebook modified its logo to remove the faint blue line at the bottom of the "F" icon. The letter F moved closer to the edge of the box. On May 2, 2019 at F8, the company announced its new vision with the tagline "the future is private". A redesign of the website and mobile app was introduced, dubbed as "FB5". The event also featured plans for improving groups, a dating platform, end-to-end encryption on its platforms, and allowing users on Messenger to communicate directly with WhatsApp and Instagram users.