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| Centuries: | 2nd century - 3rd century - 4th century |
| Decades: | 200s 210s 220s - 230s - 240s 250s 260s |
| Years: | 227 228 229 - 230 - 231 232 233 |
| 230 by topic | |
| Politics | |
| State leaders - Sovereign states | |
| Birth and death categories | |
| Births - Deaths | |
| Establishment and disestablishment categories | |
| Establishments - Disestablishments | |
| Gregorian calendar | 230 CCXXX |
| Ab urbe condita | 983 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1614 – -1613 |
| Berber calendar | 1180 |
| Buddhist calendar | 774 |
| Burmese calendar | -408 |
| Byzantine calendar | 5738 – 5739 |
| Chinese calendar | 己酉年十一月廿九日 (2866/2926-11-29) — to —
庚戌年十一月初九日(2867/2927-11-9) |
| Coptic calendar | -54 – -53 |
| Ethiopian calendar | 222 – 223 |
| Hebrew calendar | 3990 – 3991 |
| Hindu calendars | |
| - Vikram Samvat | 285 – 286 |
| - Shaka Samvat | 152 – 153 |
| - Kali Yuga | 3331 – 3332 |
| Holocene calendar | 10230 |
| Iranian calendar | 392 BP – 391 BP |
| Islamic calendar | 404 BH – 403 BH |
| Japanese calendar | |
| Korean calendar | 2563 |
| Thai solar calendar | 773 |
Events
By Place
Roman Empire
- Taxes are increased in order to maintain the unity and defense of the Empire.
- Severus Alexander decides that Thessaly should be a separate province from Macedonia.
Asia
- Ardashir I of Persia invades the Roman province of Mesopotamia. Roman emperor Alexander goes east to fight off the Persians.
By Topic
Religion
- July 21 — Pope Pontian succeeds Pope Urban I as the eighteenth pope.
- Patriarch Castinus succeeds Patriarch Ciriacus I as Patriarch of Constantinople.
- Seventy Bishops hold the Council of the Christian Church of Africa.
Births
- Zenobia, queen of Palmyra
- Marcus Aurelius Carus, Roman Emperor (d. 283)
- Deng Zhong, son of Deng Ai (d. 264)
- Cao Xun
Deaths
- Urban I
- Naehae of Silla
- Dio Cassius (approximate date)
- Empress Dowager Bian, Cao Cao's wife
- Jia Kui, general of the Han Dynasty (b. 174)
- Wu Zhi, adviser under Cao Pi of the Kingdom of Wei
- Zhong Yao, minister of the Kingdom of Wei (b. 151)
- Zhang Yi, officer of the Kingdom of Shu (b. 167)
