The 3rd century: key events

Chronyas has 569 events dated to the 3rd century (201 to 300 CE), during the Ancient civilizations. Below are the most notable ones, in date order.

Most of the events in this century belong to Wars, politics & history and Civilizations & archaeology.

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201 CEA Burial at Ornans
c. 202 CEOrigins of Bursa
203 CEOrigins of Arch of Septimius Severus (Roman Forum)
209 CEGeta becomes Roman emperor
212 CEConstitutio Antoniniana
216 CEConstruction of Baths of Caracalla
11 April 217 CEMacrinus becomes Roman emperor
218 CECallixtus I becomes Pope
8 June 218 CEElagabalus becomes Roman emperor
from 220 CE to 589 CESix dynasties
from 220 CE to 280 CEThree Kingdoms
from 220 CE to 265 CECao Wei
from 220 CE to 638 CEGhassanids
from 220 CE to 589 CEWei, Jin, Southern and Northern dynasties
from 221 CE to 263 CEShu Han
222 CEUrban I becomes Pope
13 March 222 CESeverus Alexander becomes Roman emperor
from 224 CE to 651 CESasanian dynasty
from 224 CE to 651 CESasanian Empire
28 April 224 CEArdashir I becomes Emperor of the Sasanian Empire
226 CEOrigins of Bishapur
from 229 CE to 233 CEFirst Mesopotamian campaign of Ardashir I
21 July 230 CEPontian becomes Pope
c. 233 CEEruption of Taupo
from 235 CE to 284 CEBarracks emperor
from 235 CE to 284 CECrisis of the Third Century
20 March 235 CEMaximinus Thrax becomes Roman emperor
21 November 235 CEAnterus becomes Pope
10 January 236 CEFabian becomes Pope
238 CEConstruction of Roman amphitheatre of El Jem
22 March 238 CEGordian I becomes Roman emperor
22 April 238 CEPupienus becomes Roman emperor
22 April 238 CEBalbinus becomes Roman emperor
22 April 238 CEGordian III becomes Roman emperor
c. 240 CEEruption of Ksudach
12 April 240 CEShapur I becomes Emperor of the Sasanian Empire
February 244 CEPhilip the Arab becomes Roman emperor
245 CERise of Neoplatonism
from 249 CE to 262 CEPlague of Cyprian
September 249 CEDecius becomes Roman emperor
250 CEDeath of Nagarjuna
from 250 CE to 538 CEKofun period
March 251 CECornelius becomes Pope
25 June 253 CELucius I becomes Pope
August 253 CEAemilian becomes Roman emperor
October 253 CEGallienus becomes Roman emperor
October 253 CEValerian becomes Roman emperor
12 May 254 CEStephen I becomes Pope
31 August 257 CESixtus II becomes Pope
22 July 259 CEDionysius becomes Pope
from 260 CE to 274 CEGallic Empire
from 266 CE to 420 CEJin dynasty
September 268 CEClaudius Gothicus becomes Roman emperor
5 January 269 CEFelix I becomes Pope
from 270 CE to 273 CEPalmyrene Empire
August 270 CEQuintillus becomes Roman emperor
September 270 CEAurelian becomes Roman emperor
271 CEOrigins of Gundeshapur
271 CEConstruction of Aurelian Walls
27 February 272 CEBirth of Constantine the Great
274 CEAurelian reunifies the Roman Empire
from 275 CE to 897 CEPallava dynasty
4 January 275 CEEutychian becomes Pope
September 276 CEProbus becomes Roman emperor
278 CEDiscovery of 278 Paulina
c. 280sPublication of Records of the Three Kingdoms
17 December 283 CECaius becomes Pope
from 284 CE to 306 CERoman Tetrarchy
from 284 CE to 565 CEDominate
20 November 284 CEDiocletian becomes Roman emperor
from 285 CE to 1453Byzantine Empire
from 285 CE to 476 CEWestern Roman Empire
1 April 286 CEMaximian becomes Roman emperor
c. 290sPortrait of the Four Tetrarchs
from 291 CE to 306 CEWar of the Eight Princes
293 CEConstruction of Diocletian's Palace
293 CEDiocletian establishes the Tetrarchy
30 June 296 CEMarcellinus becomes Pope
from 300 CE to 1500Hohokam
300 CEOrigins of Qasr Azraq

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