| Millennium: | 1st millennium |
|---|---|
| Centuries: | 1st century – 2nd century – 3rd century |
| Decades: | 70s 80s 90s – 100s – 110s 120s 130s |
| Years: | 101 102 103 – 104 – 105 106 107 |
| 104 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 104 CIV |
| Ab urbe condita | 857 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1740 – -1739 |
| Bengali calendar | -489 |
| Berber calendar | 1054 |
| Buddhist calendar | 648 |
| Burmese calendar | -534 |
| Byzantine calendar | 5612 – 5613 |
| Chinese calendar | 癸卯年十一月十六日 (2740/2800-11-16) — to —
甲辰年十一月廿七日(2741/2801-11-27) |
| Coptic calendar | -180 – -179 |
| Ethiopian calendar | 96 – 97 |
| Hebrew calendar | 3864 – 3865 |
| Hindu calendars | |
| - Bikram Samwat | 160 – 161 |
| - Shaka Samvat | 26 – 27 |
| - Kali Yuga | 3205 – 3206 |
| Holocene calendar | 10104 |
| Iranian calendar | 518 BP – 517 BP |
| Islamic calendar | 534 BH – 533 BH |
| Japanese calendar | |
| Korean calendar | 2437 |
| Thai solar calendar | 647 |
Year 104 (CIV) was a leap year starting on Monday (link will display the full calendar) of the Julian calendar.