The much-anticipated Facebook Timeline has finally arrived. Starting today, profiles will show users entire history on the site.

Timeline was announced in September on stage at the f8 conference, and essentially, it replaces your profile page with a scrapbook-inspired list of your history on Facebook, telling the story of your life in a collection of photos, status updates and more.

Users can turn on Timeline, go to the Introducing Timeline page and click the green “Get It Now” button at the bottom of the screen.
Facebook is offering a 7-day “review period” for users can delete or hide anything they do not want to be seen.

The initial announcement of the Timeline had many users concerned over privacy. Upon rollout, it will be interesting to see how the public embraces this new format of our favorite social network.

[source]