| 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 |
| Assyrian calendar | 4854 |
| Bahá'í calendar | -1740–-1739 |
| Bengali calendar | -489 |
| Berber calendar | 1054 |
| English Regnal year | N/A |
| 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 | |
| - Vikram Samvat | 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 |
| Minguo calendar | 1808 before ROC 民前1808年 |
| Thai solar calendar | 647 |
Year 104 (CIV) was a leap year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Suburanus and Marcellus (or, less frequently, year 857 Ab urbe condita). The denomination 104 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.