Have you ever wanted to retrieve certain information that you have accidentally deleted off Facebook? Well, you can. Simply go to your Facebook Setting page and click the Download a copy of your Facebook data link.
You will see this prompt box, and will need to click Start My Archive again. Wait for Facebook working for a few minutes and send you an e-mail containing download link for your data. Before you can download it, you will be prompted for your password again. Here is the kind of data you would expect from this download