| 100% | MIV | 3 | Year in the rule of Ethelred the Unready |
| 60% | MIII | 4 | Year in Ethelred the Unready's reign |
| 60% | MIV | 3 | Year in Ethelred the Unready's reign |
| 60% | MVI | 3 | Year in Ethelred the Unready's reign |
| 56% | MDL | 3 | Year in the reign of Ivan the Terrible |
| 56% | DLX | 3 | Year in the reign of Justinian the Great |
| 56% | CMII | 4 | Year in the reign of Edward the Elder |
| 54% | CCC | 3 | Year in the life of Constantine |
| 54% | LIX | 3 | Year in the reign of Nero |
| 54% | CMI | 3 | Third year in the reign of Edward the Elder |
| 54% | MCLXI | 5 | Year in the reign of Louis VII |
| 54% | DXL | 3 | Year in the reign of Justinian I |
| 54% | MLXI | 4 | Year in the reign of Philip I |
| 54% | MCCC | 4 | Year in the reign of Edward I |
| 54% | MDL | 3 | Year in the reign of Edward VI |
| 54% | CLI | 3 | Year in the reign of Pius I |
| 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 |
| 54% | CLV | 3 | Year in the reign of Antoninus Pius |
| 54% | CLI | 3 | Year in the reign of Antoninus Pius |
| 53% | YEARZERO | 8 | First year of the Khmer Rouge's rule in Cambodia |
| 53% | ONEBC | 5 | Year in the reign of the emperor Augustus |
| 53% | MLI | 3 | Year in the papacy of St. Leo IX |
| 53% | CLI | 3 | Year in the papacy of St. Pius I |
| 53% | CVII | 4 | Year in the middle of Trajan’s reign |
| 53% | WICCAN | 6 | Believer in the Rule of Three |
| 53% | MLI | 3 | Year in the reign of Macbeth, in Scottish history |
| 53% | MCL | 3 | Year in the reign of England's King Stephen |