I'm guessing the rest of your ciphers weren't all *that* many years ago...
Braille: "Ned Ted and Alistair were in Israel", which I believe refers to 39 Clues, so 2011 at the earliest.
Morse: "I am tired maybe I will go to sleep goodnight"
Periodic table cipher: "Spir[i]t Animals: Hunted", which was published in 2014
Periodic table cipher: "The Trials of Apollo: The Hidden Oracle", which was published in 2016
Then you've also got "This is so obvious" written in reverse in one corner.
I puzzled over "WYMWIIGHSTHIK" for a while. Looks like a transposition cipher. I fed it into the Intern…