If Gotham’s mythology weights it down from sheer volume, then Sleepy Hollow is hopelessly submerged in the deluge of a mythos not its own. Every single bit of this series inspired by based on using the names from Washington Irving’s eponymous ghost story borrows in the loosest since from vaguely supernatural-sounding events, history, and publications from throughout time.
The first season pulled names and references haphazardly from the Bible to populate a wholly original end-times scenario, sprinkled with a dash of Colonial American and European lore. I am generally in favor of wholly original mythology, and I think that CW’s Supernatural has done an excellent job of presenting new mythological construction. Sleepy Hollow has other problems.