| Millennium: | 1st millennium |
|---|---|
| Centuries: | 1st century – 2nd century – 3rd century |
| Decades: | 140s 150s 160s – 170s – 180s 190s 200s |
| Years: | 167 168 169 – 170 – 171 172 173 |
| 170 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 170 CLXX |
| Ab urbe condita | 923 |
| Armenian calendar | N/A |
| Assyrian calendar | 4920 |
| Bahá'í calendar | -1674–-1673 |
| Bengali calendar | -423 |
| Berber calendar | 1120 |
| English Regnal year | N/A |
| Buddhist calendar | 714 |
| Burmese calendar | -468 |
| Byzantine calendar | 5678–5679 |
| Chinese calendar | 己酉年十一月廿六日 (2806/2866-11-26) — to —
庚戌年閏十一月初六日(2807/2867-intercalary 11-6) |
| Coptic calendar | -114–-113 |
| Ethiopian calendar | 162–163 |
| Hebrew calendar | 3930–3931 |
| Hindu calendars | |
| - Vikram Samvat | 226–227 |
| - Shaka Samvat | 92–93 |
| - Kali Yuga | 3271–3272 |
| Holocene calendar | 10170 |
| Iranian calendar | 452 BP – 451 BP |
| Islamic calendar | 466 BH – 465 BH |
| Japanese calendar | |
| Korean calendar | 2503 |
| Minguo calendar | 1742 before ROC 民前1742年 |
| Thai solar calendar | 713 |
Year 170 (CLXX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Clarus and Cornelius (or, less frequently, year 923 Ab urbe condita). The denomination 170 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.