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| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| AD 104 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 104 CIV |
| Ab urbe condita | 857 |
| Assyrian calendar | 4854 |
| Balinese saka calendar | 25–26 |
| Bengali calendar | −489 |
| Berber calendar | 1054 |
| Buddhist calendar | 648 |
| Burmese calendar | −534 |
| Byzantine calendar | 5612–5613 |
| Chinese calendar | 癸卯年 (Water Rabbit) 2801 or 2594 — to — 甲辰年 (Wood Dragon) 2802 or 2595 |
| Coptic calendar | −180 – −179 |
| Discordian calendar | 1270 |
| Ethiopian calendar | 96–97 |
| Hebrew calendar | 3864–3865 |
| Hindu calendars | |
| - Vikram Samvat | 160–161 |
| - Shaka Samvat | 25–26 |
| - Kali Yuga | 3204–3205 |
| Holocene calendar | 10104 |
| Iranian calendar | 518 BP – 517 BP |
| Islamic calendar | 534 BH – 533 BH |
| Javanese calendar | N/A |
| Julian calendar | 104 CIV |
| Korean calendar | 2437 |
| Minguo calendar | 1808 before ROC 民前1808年 |
| Nanakshahi calendar | −1364 |
| Seleucid era | 415/416 AG |
| Thai solar calendar | 646–647 |
| Tibetan calendar | 阴水兔年 (female Water-Rabbit) 230 or −151 or −923 — to — 阳木龙年 (male Wood-Dragon) 231 or −150 or −922 |
Year 104 (CIV) was a leap year starting on Monday (link will display the full calendar) of the Julian calendar, the 104th Year of the Anno Domini (AD) designation, the 104th year of the 1st millennium, the 4th year of the 2nd century, and the 5th year of the 100s decade. 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.