Well, he didn't discover them technically in any worldwide sense. I guess you could say he learned they existed. With adorableness.
Dear Stephen King,
I owe you an apology. Turns out it was possible to get that book read in under 3 weeks. In fact, thanks to my DVR recording everything I had been planning on watching, I got through it in 11 days, powering through 100 pages a day, 74 pages on the last day. It was pretty great. Please still feel free to send me all your future books for free.