| Clue | Source | Date |
|---|---|---|
| Old wall paintings | ||
| Writing on the wall? | LA Times Daily | 06 Apr 2024 |
| Early home décor | New York Times | 03 Nov 2023 |
| The Lascaux bulls, e.g | LA Times Daily | 11 Mar 2023 |
| Prehistoric paintings | Newsday | 24 Apr 2022 |
| Primitive paintings, e.g | Eugene Sheffer | 31 Jul 2021 |
| Prehistoric discovery | Newsday | 26 Jun 2021 |
| Works on walls? | Universal | 12 Jun 2020 |
| Some early doodles | The New Yorker | 16 Jul 2018 |
| Prehistoric paintings | USA Today | 04 Feb 2017 |
| Prehistoric paintings | ||
| Archeological find | Newsday | 10 Apr 2016 |
| Grotte de Cussac attraction | LA Times Daily | 25 Jul 2015 |
| Grotte de Cussac attraction | ||
| Lascaux find | ||
| Some early paintings | ||
| Some early paintings | ||
| Lascaux paintings, e.g. | ||
| Archaeology discovery | ||
| Ancient graffiti | ||
| Handwriting on the wall, maybe | ||
| Paleontological study |