The History button displays the list of sites that you have visited in the past 20 days. This is a good way of checking up on a child, or if you forget to bookmark a site you can find it here. All you have to do is go to the date you went to that site and click on it. It will open up a folder of all the corresponding pages in that site. Click the one you wish to go to, and it will open in the main window, then add it to favorites as mentioned above