Open Graph apps can now post to past points on users’ Timelines, according to a post on the Facebook Developer Blog. The feature, previously in beta, enables a new wave of applications that let users fill in their profiles. For instance, users can use Wipolo to indicate that they went on a trip in June 2004 and have that activity display at the right date on Timeline. Urbanspoon users can check into restaurants after the fact and have the action automatically show up in the appropriate spot. Apps that help users chronicle their past like this are a key way to enhance Timeline and could be a big opportunity for marketers and developers to engage consumers in new ways. Actions that are set more than three days in the past will not show in Ticker or News Feed. This will allow users to fill in several aspects of their Timelines at once without overtaking their friends’ feeds. Past actions will populate the monthly and yearly app aggregations as predefined by the developer.