Facebook also introduced Timeline, a significant departure from the traditional way that user profiles are displayed. With Timeline, Facebook creates a historical record of photos, status updates, locations you’ve visited, and significant events. Users are encouraged to fill in the gaps of the timeline, even adding information about dates before they joined Facebook. Reaction to the Timeline feature has been mixed, with some users expressing concern over privacy issues and others claiming that by encouraging users to fill in the gaps, Facebook is simply trying to get people to share more personal data that the company can use to attract advertisers.