The Professor Layton Wiki was founded by Killerbreadbug72 on December 29, 2008. Over the years, the site has undergone multiple adoptions and expansion, and it now contains 2,497 articles and 7,686 files.
The wiki has been adopted 3 times since its creation. The first time was by Wiki443556, when the founder (Killerbreadbug72) became inactive. For the same reason it was later also adopted by MoltenAsh and then (technically) by Tjcool007, who is still active. All these users are bureaucrats.
See the user rights log for the exact dates.
Anyone can edit articles on the Professor Layton Wiki, though it is currently required to create an account with Wikia first.
There are several areas to help on the site. Aside from general article improvement, the wiki is in need of people to help with adding puzzle pages, as explained on the project page. The wiki also has multiple article stubs that require improvement and is in need of character art. A more general to do list can be found at PLW:ToDo.