| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
|
| Gregorian calendar | 198 CXCVIII |
| Ab urbe condita | 951 |
| Assyrian calendar | 4948 |
| Balinese saka calendar | 119–120 |
| Bengali calendar | −395 |
| Berber calendar | 1148 |
| Buddhist calendar | 742 |
| Burmese calendar | −440 |
| Byzantine calendar | 5706–5707 |
| Chinese calendar | 丁丑年 (Fire Ox) 2894 or 2834 — to — 戊寅年 (Earth Tiger) 2895 or 2835 |
| Coptic calendar | −86 – −85 |
| Discordian calendar | 1364 |
| Ethiopian calendar | 190–191 |
| Hebrew calendar | 3958–3959 |
| Hindu calendars | |
| - Vikram Samvat | 254–255 |
| - Shaka Samvat | 119–120 |
| - Kali Yuga | 3298–3299 |
| Holocene calendar | 10198 |
| Iranian calendar | 424 BP – 423 BP |
| Islamic calendar | 437 BH – 436 BH |
| Javanese calendar | 75–76 |
| Julian calendar | 198 CXCVIII |
| Korean calendar | 2531 |
| Minguo calendar | 1714 before ROC 民前1714年 |
| Nanakshahi calendar | −1270 |
| Seleucid era | 509/510 AG |
| Thai solar calendar | 740–741 |
| Tibetan calendar | 阴火牛年 (female Fire-Ox) 324 or −57 or −829 — to — 阳土虎年 (male Earth-Tiger) 325 or −56 or −828 |
Year 198 (CXCVIII) 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 Sergius and Gallus (or, less frequently, year 951 Ab urbe condita). The denomination 198 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
- Publius Septimius Geta, son of Septimius Severus, receives the title of Caesar.
- Caracalla, son of Septimius Severus, is given the title of Augustus.
China
- Battle of Xiapi: Chinese warlord Cao Cao defeats Lü Bu; afterwards he has him executed.
By topic
Religion
- Mark I succeeds Olympians as Patriarch of Constantinople.
Births
- Lu Kai, Chinese official of the Eastern Wu state in the Three Kingdoms period (d. 269)
- Quan Cong, Chinese general of the Eastern Wu state in the Three Kingdoms period (d. 249)
Deaths
- Li Jue, Han dynasty warlord and regent
- Mi Heng, Han dynasty scholar (b. 173)
- Zhang Yang, Han dynasty warlord