Facebook provides a functionality to be informed about events in the past: “here’s a way to rediscover things you’ve shared and posts you’ve been tagged in.” Drew Olanoff writes: “Facebook has launched controls to let you filter out … bad memories. Simply go to your “On This Day” page and then click on “preferences.” Then you can enter a date or person to have content filtered out the next time that date or person is about to be shoved into your unsuspecting face.”