The official "Star Trek" website describes "Star Trek" canon as "the events that take place within the episodes and movies" referring to the live-action television series and films, with ' having long existed in a . Events, characters and storylines from tie-in novels, comic books, and video games are explicitly excluded from the "Star Trek" canon, but the site notes that elements from these sources have been subsequently introduced into the television series, and says that "canon is not something set in stone." Some non-canonical elements that later became canonical in the Star Trek universe are Uhura's first name Nyota, introduced in the novels and made canonical in the 2009 film "Star Trek", and James T. Kirk's middle name Tiberius, introduced in the "Star Trek" animated series and made canonical in '.