Zelda - Is There One Unified Timeline?

The series has become weirder as it goes on. It's just totally sunk into this pocket fantasy conception of what fantasy be where it doesn't resemble any other kind of fantasy. They've got Gorons, which are rock monsters and Zora, which are fish monsters. The bad guys are like pigs or or rudos or ceramic robots and stuff. And I really like it. What was your question? Was the timeline? Why did it balloon into timelines? Is there one unified timeline?