February 4th, 2004 was the very first day that Facebook, or back then The Facebook, went live on the internet. It all began by Mark Zuckerberg in his Harvard dorm room when he was nineteen years old. Seven years later, he is 26 and the youngest billionaire in the world.

Facebook has chosen to to celebrate its birthday along with the 1.5 million other people on Facebook whose birthday also happens to be on February 4th. So to those 1.5 million and the most popular social network on the planet, happy birthday.