Facebook rolls out "Timeline"

This new timeline feature brings those events back, mapping them on a graphic that tells the story of a user's life, from birth to present day. Although the idea was praised widely, new privacy concerns were raised with the feature, one of them being that it was visible from the Timeline when you unfriended certain people (Facebook has said this was a glitch that's been corrected).

http://www.cnn.com/2011/12/07/tech/social-media/facebook-begins-timeline-rollout/index.html?hpt=hp_bn6

And I don't know to what extent Timeline is influenced or inspired by David Gerlenter