| 100% | ONEAD | 5 | The first year of the Common Era |
| 96% | ONEAD | 5 | First year of the Common Era |
| 66% | TRIASSIC | 8 | The first period of the Mesozoic Era |
| 63% | TRIASSIC | 8 | First period of the Mesozoic Era |
| 63% | DII | 3 | First year of the Liang dynasty |
| 63% | MDI | 3 | First year of the XVIth century |
| 63% | CMI | 3 | First year of the 10th century |
| 62% | ONEAD | 5 | Start of the Common Era |
| 61% | JANUARY | 7 | First month of the year |
| 60% | YEARZERO | 8 | First year of the Khmer Rouge's rule in Cambodia |
| 60% | EZRA | 4 | It begins "In the first year of Cyrus..." |
| 60% | JAN | 3 | First month of the year: Abbr. |
| 59% | SYNE | 4 | Last word in the first song of the year |
| 59% | MCM | 3 | Year of the first Davis Cup matches |
| 59% | ENERO | 5 | First month of the year, in Spanish |
| 59% | JAN | 3 | First mo. of the year |
| 58% | FRESHMAN | 8 | Student in the first year of high school or college |
| 58% | MCMIII | 6 | Year of the 21-Acrosses' first 25-Across |
| 58% | MDXI | 4 | Year of the first Spanish settlement in Cuba |
| 58% | APRIL | 5 | First month of the year with 30 days |
| 58% | EZRA | 4 | It begins "In the first year of Cyrus king of Persia..." |
| 58% | ENERO | 5 | First month of the year, south of the border |
| 58% | ASHE | 4 | First winner of the ATP Player of the Year |
| 58% | TET | 3 | First day of the Lunar New Year, in Vietnam |
| 57% | ADDICTION | 9 | Way of speaking about the Common Era? |
| 57% | JAN | 3 | Shortening for first month of the year |
| 57% | VOLARE | 6 | 1958 Italian song that won the first Song of the Year Grammy |
| 57% | TET | 3 | Vietnamese New Year, celebrated on the first day of the Lunar calendar |
| 57% | EZRA | 4 | It begins "Now in the first year of Cyrus king of Persia ..." |
| 57% | ASHE | 4 | First recipient of the ATP Player of the Year award |