| Clue | Source | Date |
|---|---|---|
| 156, in Roman numerals | Commuter | 19 Mar 2025 |
| 44 qvadrvpled | Newsday | 03 Sep 2021 |
| 156, to Livy | ||
| MDLX X | ||
| XII x XIII | ||
| Half of CCCXII | ||
| Half of CCCXII | ||
| Mid second-century date | ||
| Ovid's 156 | ||
| XXXIX quadrupled | ||
| Half of CCCXII | ||
| Romans' 156 | ||
| Cato's 156 | ||
| One-fourth of DCXXIV | ||
| Year in reign of Antoninus Pius. |