We all know that Facebook was invented by Mark Zuckerberg in 2004 with his Harvard College roommates and fellow students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes. It has undergone many changes from then. Now, one cannot see the people who do not have a facebook account. From children to the older all are having the accounts as it is useful because we can be connected with the friends wherever we go around the world. Here is the video when Zuckerberg is introducing the facebook.