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Begining of Facebook

Facebook is an American online social media   and  social   networking service company based in Menlo Park, California. Its website was launched on February 4, 2004, by Mark Zuckerberg, along   with   fellow   Harvard College  students  and roommates Eduardo SaverinAndrew McCollumDustin Moskovitz, and Chris Hughes.

The founders initially limited the website's membership to Harvard students. Later they expanded it to higher education institutions in the Boston area, the Ivy League schools, and Stanford University.


 Since 2006, anyone who claims to be at least 13 years old has been allowed to become a registered user of Facebook, The name comes from the face book directories often given to American university students. 


Facebook makes most of its revenue from advertisements that appear onscreen.Facebook can be accessed from    a    large    range   of    devices with    Internet    connectivity,    such as    desktop computerslaptops and tabletcomputers, and smartphones


After registering, users can create a customized profile indicating their name, occupation, schools attended and so on. Users can add other users as "friends", exchange messages, post status updates, share photos, videos and links, use various software applications.


Facebook has more than 2.2 billion monthly active users as of January 2018. In recent years, the company has faced intense pressure over the amount of fake newshate speech   and    depictions   of violence  prevalent on its services, all of which it is attempting to counteract.

Facebook's key management personnel consists of Mark Zuckerberg (Chairman and Chief Executive Officer), Sheryl Sandberg(Chief Operating Officer), David Wehner (Chief Financial Officer), Mike Schroepfer (Chief Technology Officer), and Chris Cox (Chief Product Officer).[128] As of June 30, 2017, Facebook has 20,658 employees.


The website's primary color is blue as Zuckerberg is red-green colorblind, a realization that occurred after a test undertaken around 2007; he explained in 2010: "blue is the richest color for me—I can see all of blue."


CEO Mark Zuckerberg announced in August 2008 that Facebook had passed 100 million registered users.This increased to 150 million "active" users in January 2009. 


Mark Zuckerberg announced to the media at the start of October 2012 that Facebook had passed the monthly active users mark of one billion.The company's data also revealed 600 million mobile users, 219 billion photo uploads, and 140 billion friend connections. 


This continued to grow, reaching 1.19 billion monthly active users in October 2013,1.44 billion users in April 2015, of which 1.25 billion were mobile users,1.71 billion users in July 2016,1.94 billion users in March 2017and ultimately 2 billion users in June 2017.

Facebook is the most popular social networking site in several English-speaking countries, including Canada,the United  Kingdom, and  the  United States. However, Facebook still receives limited adoption in countries such as Japan, where domestically created social networks are still largely preferred.

Author Ben Mezrich published a book in July 2009 about Zuckerberg and the founding of Facebook, titled The Accidental Billionaires: In 2009, "My Facebook" song from Gigi was released in Indonesia. 


In July 2014, after Shakira became the first celebrity to cross over 100 million likes, Mark Zuckerberg posted a congratulatory message on the artist's wall. Cristiano Ronaldo is the second to reach 100 million likes, ahead of Rihanna and Eminem
, who had 98 million and 89 million likes respectively.

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