Thanks again to Govind Choudhary from whose Blog I came to know of this information....
Please visit his blog too...Its an amazing blog...

A timeline is a way of displaying a list of events in chronological order. It is typically a graphic design showing a long bar labeled with dates alongside itself and events labeled on points where they would have happened.It highlights all your Life story in a Single page from beginning when you joined facebook...Read more of it at FACEBOOK TIMELINE

Facebook launched Timeline on Android Phone and m.facebook.com using Touch devices to make it fully Available on Web.Mobile timeline starts with your unique cover photo. As you scroll down, you’ll see your posts, photos and life events as they happened. Photo albums and other posts are horizontally swappable. You can also swipe through the views at the top of your timeline to navigate to your map, photos, subscribers and more.