The Startup Story of Facebook

17 years ago, on February 4, 2004, 19-year old Harvard student Mark Zuckerberg, along with some of his classmates, launched a little website called Thefacebook, their first startup.

Andrew Constable MBA
2 min readApr 8, 2021


“Thefacebook is an online directory that connects people through social networks at colleges”, the original website greeted its visitors back then, explaining that it would enable them to “search for people at your school, find out who is in your classes, look up your friends’ friends and see a visualization of your social network.”

Confined to the Harvard campus at first, the service quickly gained popularity and was subsequently rolled out to other colleges using growth marketing methods. By the end of 2004, Thefacebook had more than 1 million registered users and the newly-founded company behind it had not only moved to Silicon Valley but also secured a $500,000 investment from PayPal co-founder Peter Thiel. After changing its name to just “Facebook” in 2005, the social network was opened to the general public in the fall of 2006, marking the start of one of the most remarkable growth marketing stories in startup history.

Within three years, the social network added 350 million users and in the summer of 2012, it became the first online service of its kind to reach 1 billion monthly active users, massive growth!. By the end of 2018, that number had grown to 2.32 billion people, considering that Facebook is banned in China, this number is huge. This means that more than half the world’s online population is using the platform dreamed up by a teenager in his college dorm room.

This is an outstanding story of how a fast-growth startup gained traction and went viral. If you haven't seen it already, I would recommend the movie, The Social Network, which is based on the story of Facebook.

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Andrew Constable MBA

Strategic Innovation & OKR Consultant for Medium-Sized Businesses ⟫ Partner, Author & Lecturer ⟫