It is a theory on the chronological order of Hyrule, and all the Zelda games in the series. As you know Nintendo has never really told us which game came first or a definite timeline, but I've chosen to believe this one. It's quite solid, and gives me a whole knew perspective on how I play the games. It makes Ocarina of Time, that much more epic with the alternate Dimensions.
It also fails to mention Twilight Princess and Phantom Hourglass as they were not yet released, where do you think they fit?
Wow...I just played the games and didn't really think of a timeline.
I believe Twilight Princess is below the GBA game in Hyrule A, I'm probably wrong though.
I'm not that in depth at analysing as these guys.