Board Thread:Wiki Discussions and Support/@comment-7292165-20150213003152/@comment-7292165-20150213004629

It would seem like a good idea if it wasn't a flashback before Part II. Though its not officially part I for the manga anyways as Naruto left it ended but it makes more sense to extend it from Part I as Part II is whole different story. The "Time-Skip" sub section is to make it separate from the other filler arcs. Its like the "Blank Period" subheader for The Last: Naruto the Movie.