| 100% | MDL | 3 | Year in the reign of Ivan the Terrible |
| 71% | MDLI | 4 | Year in Ivan the Terrible's reign |
| 70% | DLX | 3 | Year in the reign of Justinian the Great |
| 70% | CMII | 4 | Year in the reign of Edward the Elder |
| 68% | CMI | 3 | Third year in the reign of Edward the Elder |
| 68% | MCLXI | 5 | Year in the reign of Louis VII |
| 68% | DXL | 3 | Year in the reign of Justinian I |
| 68% | MLXI | 4 | Year in the reign of Philip I |
| 68% | MCCC | 4 | Year in the reign of Edward I |
| 68% | MDL | 3 | Year in the reign of Edward VI |
| 68% | CLI | 3 | Year in the reign of Pius I |
| 68% | CLV | 3 | Year in the reign of Antoninus Pius |
| 68% | CLI | 3 | Year in the reign of Antoninus Pius |
| 67% | ONEBC | 5 | Year in the reign of the emperor Augustus |
| 67% | MLI | 3 | Year in the reign of Macbeth, in Scottish history |
| 67% | MCL | 3 | Year in the reign of England's King Stephen |
| 56% | MIV | 3 | Year in the rule of Ethelred the Unready |
| 54% | CCC | 3 | Year in the life of Constantine |
| 54% | ANNO | 4 | ___regni (in the year of the reign) |
| 54% | ANNO | 4 | ___ regni (in the year of the reign) |
| 54% | MCC | 3 | Year in the papacy of Innocent III |
| 54% | CCI | 3 | Year in the papacy of St. Zephyrinus |
| 54% | MII | 3 | Year in the life of Leif Ericson |
| 54% | MMLI | 4 | Year in the middle of this century |
| 53% | MLI | 3 | Year in the papacy of St. Leo IX |
| 53% | CLI | 3 | Year in the papacy of St. Pius I |
| 53% | DMITRI | 6 | Youngest son of Ivan the Terrible |
| 52% | CDLI | 4 | A year in the life of Attila |
| 52% | MLI | 3 | A year in the life of St. Anselm |
| 51% | STALINERA | 9 | Setting for "One Day in the Life of Ivan Denisovich" |