| Clue | Source | Date |
|---|---|---|
| Roman 2600 | Eugene Sheffer | 19 Oct 2024 |
| Roman 2600 | Eugene Sheffer | 17 Aug 2023 |
| Roman 2600 | Eugene Sheffer | 11 Jul 2022 |
| Multiple of LII | ||
| 2600, in 26 B.C. | ||
| End of the 26th century | ||
| About six centuries hence | ||
| 2600, to Caesar | ||
| MMM - CD | ||
| Eight times CCCXXV |