KNOWN
| Date | Clue |
|---|---|
| 2026-03-11 | Recognized |
| 2023-05-31 | Widely recognized |
| 2021-12-19 | Not a mystery |
| 2021-12-13 | In the public consciousness |
| 2018-12-30 | Famous |
| 2017-12-14 | Not anonymous |
| 2012-02-19 | Public |
| 2005-05-16 | Widely recognized |
| 2003-01-23 | Famous |
| 2002-08-07 | Public, as information |
| 2000-03-20 | On the map |
| 1999-07-21 | Famous |
| 1995-02-28 | Understood |