The Zohar ("Book of Splendour") is the central text of Jewish mysticism, first appearing in Spain in the 1280s. Traditional attribution credits the 2nd-century sage Rabbi Shimon bar Yochai, said to have composed it while hiding in a cave from Roman persecution — with the text remaining hidden for exactly 1,200 years before its rediscovery, precisely as legend says bar Yochai himself predicted. Modern academic scholarship, following Gershom Scholem's landmark research, largely credits authorship instead to the Spanish Kabbalist Moses de León (c. 1240–1305), who circulated the manuscripts himself, claiming to have copied them from bar Yochai's ancient original.