| Clue | Source | Date |
|---|---|---|
| Merriam-Webster's Ninth New Collegiate Dictionary and "Where's Waldo?," once, surprisingly | New York Times | 12 Jan 2024 |
| They're removed from libraries | Thomas Joseph | 23 Aug 2016 |
| "Ulysses" and "Candide," once | ||
| "Ulysses" and "Candide," once |