[ He gets that question a lot. Dates and numbers come up a lot in his day job, he's gotten better with them all around, but that specific number is hard to come up with. Luckily she seems to get concepts better than a lot of humans so she might not pester him for an exact number. ]

Millions of the human's years. I knew the first tool makers, the ones closer to the Kong and the other Apes in appearance. [ And like with most things he offers no unprompted elaboration on who the hell Kong is. ] I remember when humans first started appearing, though I do not recall when or why the decision was made to protect them. It was not mine, I have simply upheld that duty.

[ He's not even sure who it was. His mother? One of the other elders of his kind? It's one of those things frustratingly lost to the mists of time. It's not something he enjoys thinking about, which is why it's so very important that he change the focus. ]

What of yourself? Which humans did your pantheon stand watch over?

[ At least she doesn't have to explain the concept of different pantheons. It's a subject of study he's touched on in his work and spare time. ]