Facebook Timeline

2003

Facemash



Mark Zuckerberg wrote a program called Facemash on 8th October, 2003 while a student at Harvard. The site placed photos of two people next to each other at a time, asking users to choose the 'hotter' one. The website later went on sale on the online auction site "Flippa" and was bought for $30K by a buyer who chose to remain anonymous.

2004

TheFacebook



The following semester, Zuckerberg began writing code for a new website. On February 4, 2004, Zuckerberg launched "Thefacebook", originally located at thefacebook.com. Membership was initially restricted to students of Harvard College.

The controversy



Six days after the site launched, three Harvard seniors (Cameron Winklevoss, Tyler Winklevoss, and Divya Narendra) accused Zuckerberg of intentionally misleading them into believing he would help them build a social network called HarvardConnection.com. They claimed he was instead using their ideas to build a competing product. The three complained to The Harvard Crimson and the newspaper began an investigation. They later filed a lawsuit against Zuckerberg, subsequently settling in 2008 for 1.2 million shares (worth $300 million at Facebook's IPO).

Expansion to Ivy League



In March 2004, Facebook expanded to the universities of Columbia, Stanford, and Yale. It later opened to all Ivy League colleges, Boston University, New York University, MIT, and gradually most universities in Canada and the United States.

2006

Public access to Facebook



On September 26, 2006, Facebook was opened to everyone at least 13 years old with a valid email address. The News Feed, a homepage feature where user profiles contained mini-feeds that displayed user activity, was announced by Ruchi Sanghvi on 6 September 2006.

2008

Application Tab



Users were able to add application tabs to their profiles. Facebook also introduced the Publish toolbar, which allowed a user to publish a status update, post a photo or link to profile.

2009

The Like Button



The "like" button was introduced onto the Facebook platform, which was described by Facebook as a way to "give positive feedback and connect with the things you care about". The number of likes on a page is one factor that Facebook uses to determine what to show in the News Feed.

2010

Facebook Places



Facebook announced Places on August 18, 2010. It is a feature that lets users "check in" to Facebook using a mobile device to let a user's friends know where they are at the moment.

2011

The Timeline Layout



Timeline, a virtual space in which all the content of Facebook users is organized and shown, was introduced in December 2011 which replaced the Facebook Profile.

2013

Hashtag feature



On June 12, 2013, Facebook announced in its official blog post that it is introducing clickable hashtags to help users to search the topics which are being discussed over the web easily.