| 100% | MII | 3 | Year in the life of Leif Ericson |
| 68% | CCC | 3 | Year in the life of Constantine |
| 66% | CDLI | 4 | A year in the life of Attila |
| 65% | MLI | 3 | A year in the life of St. Anselm |
| 58% | TIMES | 5 | "Fast ___ at Ridgemont High," 1982 film starring Sean Penn that chronicles a year in the lives of high school students |
| 52% | SOON | 4 | Few zillion years from now in the life of the sun |
| 51% | LIX | 3 | Year in the reign of Nero |
| 51% | MCLXI | 5 | Year in the reign of Louis VII |
| 51% | DXL | 3 | Year in the reign of Justinian I |
| 51% | MLXI | 4 | Year in the reign of Philip I |
| 51% | MCCC | 4 | Year in the reign of Edward I |
| 51% | MDL | 3 | Year in the reign of Edward VI |
| 51% | CLI | 3 | Year in the reign of Pius I |
| 51% | MCC | 3 | Year in the papacy of Innocent III |
| 51% | CCI | 3 | Year in the papacy of St. Zephyrinus |
| 51% | MMLI | 4 | Year in the middle of this century |
| 51% | CLV | 3 | Year in the reign of Antoninus Pius |
| 51% | CLI | 3 | Year in the reign of Antoninus Pius |
| 50% | ODD | 3 | Like the number of years in a periodical cicada’s life cycle |
| 50% | STALINERA | 9 | Setting for "One Day in the Life of Ivan Denisovich" |
| 50% | ULYSSES | 7 | Novel about one day in the life of three Dubliners |
| 50% | IVAN | 4 | Aleksandr Solzhenitsyn’s “One Day in the Life of ___ Denisovich” |
| 50% | MDL | 3 | Year in the reign of Ivan the Terrible |
| 50% | DLX | 3 | Year in the reign of Justinian the Great |
| 50% | ONEBC | 5 | Year in the reign of the emperor Augustus |
| 50% | MIV | 3 | Year in the rule of Ethelred the Unready |
| 50% | CMII | 4 | Year in the reign of Edward the Elder |
| 50% | MLI | 3 | Year in the papacy of St. Leo IX |
| 50% | CLI | 3 | Year in the papacy of St. Pius I |
| 50% | CVII | 4 | Year in the middle of Trajan’s reign |