Zuckerberg built a website called "Facemash" in 2003 while attending Harvard University. The site was … See more

Facebook posts can have an unlimited number of characters. They can also have images and videos.
Users can "friend" users, both sides must agree to being friends. Post can be changed t… See more

The site's primary color is blue as Zuckerberg is red–green colorblind, a realization that occurred after a test taken around 2007. Facebook was initially built using PHP, a popular scripting language designed fo… See more

Facebook's rapid growth began as soon as it became available and continued through 2018, before beginning to decline.
Facebook passed 100 million registered users in 2008, and 500 million in July 2010. According t… See more

Facebook's importance and scale has led to criticisms in many domains. Issues include Internet privacy, excessive retention of user information, its facial recognition software, DeepFace its addictive quality and its role in th… See more

A commentator in The Washington Post noted that Facebook constitutes a "massive depository of information that documents both our reactions to events and our evolving customs with a scope and immediacy … See more