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| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| AD 18 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | AD 18 XVIII |
| Ab urbe condita | 771 |
| Assyrian calendar | 4768 |
| Balinese saka calendar | N/A |
| Bengali calendar | −575 |
| Berber calendar | 968 |
| Buddhist calendar | 562 |
| Burmese calendar | −620 |
| Byzantine calendar | 5526–5527 |
| Chinese calendar | 丁丑年 (Fire Ox) 2715 or 2508 — to — 戊寅年 (Earth Tiger) 2716 or 2509 |
| Coptic calendar | −266 – −265 |
| Discordian calendar | 1184 |
| Ethiopian calendar | 10–11 |
| Hebrew calendar | 3778–3779 |
| Hindu calendars | |
| - Vikram Samvat | 74–75 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 3118–3119 |
| Holocene calendar | 10018 |
| Iranian calendar | 604 BP – 603 BP |
| Islamic calendar | 623 BH – 622 BH |
| Javanese calendar | N/A |
| Julian calendar | AD 18 XVIII |
| Korean calendar | 2351 |
| Minguo calendar | 1894 before ROC 民前1894年 |
| Nanakshahi calendar | −1450 |
| Seleucid era | 329/330 AG |
| Thai solar calendar | 560–561 |
| Tibetan calendar | 阴火牛年 (female Fire-Ox) 144 or −237 or −1009 — to — 阳土虎年 (male Earth-Tiger) 145 or −236 or −1008 |
AD 18 (XVIII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Caesar (or, less frequently, year 771 Ab urbe condita). The denomination AD 18 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.