In wordpress it is possible to schedule a post in the past. For example I can write a post now and schedule it on 08/08/2013. Google actually shows that date in the SERPs later even if the post was crawled and indexed last week. As we all know age of an article / link plays a huge role. So by scheduling posts in the past we can 'fake' the age of an article. Does this help to make a post / link older for google? Or do they use the date when it was first crawled when they consider the age of an article?