Get ready for your Facebook past to come back with a vengeance; the social network is now rolling out its new profile layout, Timeline, to all users worldwide. Timeline is basically an online scrapbook that displays your Facebook activity in reverse chronological order going back to when you first joined the social network.

This means you and your Facebook friends will be able to peruse your social networking history with just a few clicks. Previously, there was no practical way to view your older activity on Facebook.

If Timeline’s debut has you wondering whether you can hide the embarrassing bits of your Facebook life before your new profile goes live, the good news is you can. But you’ll only have seven days to make any changes to your Timeline before it becomes your default profile.