This is the place to come if you want to look at timelines for characters and things. Its creation was authorised by forum:timeline pages, which all readers should consult if they don't understand why this move has been adopted.
Briefly, however, timelines have been taken out of the normal namespace because they contained an awful lot of conjecture. And they will always be largely suppositional. Thus, they are better placed within the forum namespace, rather than implied a kind of "fact" within the main namespace. Indeed, all timeline pages which used to exist on the wiki have been deleted in an effort to remake them without the use of the Doctor Who Reference Guide, which isn't considered a valid source by this wiki. By "burning down" the existing timeline pages, and explicitly reminding people that the DWRG is not a valid source, we're hoping that each story will be carefully reconsidered on its own merits before being put back into a timeline. Because these pages are definitionally the opinions of editors, you should avoid linking to them from articles in the main namespace.
The page Forum:Timeline - Eighth Doctor is to be seen as a model for the new timeline pages. If you're trying to figure out what we're trying to accomplish, take a look at that page and create your new timeline page in its image. The key features are: explanation of underlying assumptions, citations to valid sources where possible, and frank admission of the spots where arbitrary placement has been made.
As of 1 May 2012, there are no plans to archive any of this material. The threads will simply be left intact here, until it becomes obvious that there is a demonstrated need for an archive.
This thread list is comprised of two parts: the Timeline threads themselves and general essays/thoughts about time. These latter type of threads must be created under category:Time essays for them to show up correctly.