| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
|
| Gregorian calendar | 178 CLXXVIII |
| Ab urbe condita | 931 |
| Assyrian calendar | 4928 |
| Balinese saka calendar | 99–100 |
| Bengali calendar | −415 |
| Berber calendar | 1128 |
| Buddhist calendar | 722 |
| Burmese calendar | −460 |
| Byzantine calendar | 5686–5687 |
| Chinese calendar | 丁巳年 (Fire Snake) 2874 or 2814 — to — 戊午年 (Earth Horse) 2875 or 2815 |
| Coptic calendar | −106 – −105 |
| Discordian calendar | 1344 |
| Ethiopian calendar | 170–171 |
| Hebrew calendar | 3938–3939 |
| Hindu calendars | |
| - Vikram Samvat | 234–235 |
| - Shaka Samvat | 99–100 |
| - Kali Yuga | 3278–3279 |
| Holocene calendar | 10178 |
| Iranian calendar | 444 BP – 443 BP |
| Islamic calendar | 458 BH – 457 BH |
| Javanese calendar | 54–55 |
| Julian calendar | 178 CLXXVIII |
| Korean calendar | 2511 |
| Minguo calendar | 1734 before ROC 民前1734年 |
| Nanakshahi calendar | −1290 |
| Seleucid era | 489/490 AG |
| Thai solar calendar | 720–721 |
| Tibetan calendar | 阴火蛇年 (female Fire-Snake) 304 or −77 or −849 — to — 阳土马年 (male Earth-Horse) 305 or −76 or −848 |
Year 178 (CLXXVIII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Scipio and Rufus (or, less frequently, year 931 Ab urbe condita). The denomination 178 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.
Events
By place
Roman Empire
- Bruttia Crispina marries Commodus, and receives the title of Augusta.
- Emperor Marcus Aurelius and his son Commodus arrive at Carnuntum in Pannonia, and travel to the Danube to fight against the Marcomanni.
Asia
- Last (7th) year of Xiping era and start of Guanghe era of the Chinese Han Dynasty.
- In India, the decline of the Kushan Empire begins. The Sassanides take over Central Asia.
Religion
Births
- Lü Meng, Chinese general (d. 220)
- Peng Yang, Chinese official (d. 214)
- Zhang Cheng, Chinese general (d. 244)
Deaths
- February 12 – Agrippinus, patriarch of Alexandria
- Song, Chinese empress of the Han Dynasty