So yeah, remember that whole Zelda timeline thing which Nintendo claimed they would never ever publicly reveal? Well, that official Hyrule Historia artbook apparently revealed it. Here's a helpful image transcribing it:
Fans had mostly figured it out. The only thing which goes against common fan theories is the part where Ocarina causes a three time split, one is obviously caused by Link returning to his own timeline to warn the king of Ganondorf(Majora's mask>Twilight Princess), the other is the future world that gets left behind after Link returns to his own time(which leads to Wind Waker happening), and the last, which is what fans have always failed to take into account, is the possibility that a game-over might cause a split as well. Everything that happens from ALTTP to TLOZ2 is if Link fails to beat Ganon and he gains the triforce. This explains why Ganondorf never shows up in the earlier games.(translation:retconning motherfuckers!)
The artbook expands more on it and apparently gives detailed back-story behind the way these games connect. Keep in mind that this is translated by an internet guy so it might turn out to be BS, though its not very likely.
Edit: ah, shit double thread. Can a mod delete the other?