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)
from 209 CE to 211 CEGeta becomes Roman emperor
212 CEConstitutio Antoniniana
216 CEConstruction of Baths of Caracalla
from 11 April 217 CE to 8 June 218 CEMacrinus becomes Roman emperor
from 218 CE to 222 CECallixtus I becomes Pope
from 8 June 218 CE to 11 March 222 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
from 222 CE to 230 CEUrban I becomes Pope
from 13 March 222 CE to 18 March 235 CESeverus Alexander becomes Roman emperor
from 224 CE to 651 CESasanian dynasty
from 224 CE to 651 CESasanian Empire
from 28 April 224 CE to 1 February 242 CEArdashir I becomes Emperor of the Sasanian Empire
226 CEOrigins of Bishapur
from 229 CE to 233 CEFirst Mesopotamian campaign of Ardashir I
from 21 July 230 CE to 28 September 235 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
from 20 March 235 CE to 1 June 238 CEMaximinus Thrax becomes Roman emperor
from 21 November 235 CE to 3 January 236 CEAnterus becomes Pope
from 10 January 236 CE to 20 January 250 CEFabian becomes Pope
238 CEConstruction of Roman amphitheatre of El Jem
from 22 March 238 CE to 12 April 238 CEGordian I becomes Roman emperor
from 22 April 238 CE to 29 July 238 CEPupienus becomes Roman emperor
from 22 April 238 CE to 29 July 238 CEBalbinus becomes Roman emperor
from 22 April 238 CE to 11 February 244 CEGordian III becomes Roman emperor
c. 240 CEEruption of Ksudach
from 12 April 240 CE to 1 May 270 CEShapur I becomes Emperor of the Sasanian Empire
from February 244 CE to September 249 CEPhilip the Arab becomes Roman emperor
245 CERise of Neoplatonism
from 249 CE to 262 CEPlague of Cyprian
from September 249 CE to June 251 CEDecius becomes Roman emperor
250 CEDeath of Nagarjuna
from 250 CE to 538 CEKofun period
from March 251 CE to June 253 CECornelius becomes Pope
from 25 June 253 CE to 5 March 254 CELucius I becomes Pope
from August 253 CE to October 253 CEAemilian becomes Roman emperor
from October 253 CE to September 268 CEGallienus becomes Roman emperor
from October 253 CE to January 260 CEValerian becomes Roman emperor
from 12 May 254 CE to 2 August 257 CEStephen I becomes Pope
from 31 August 257 CE to 6 August 258 CESixtus II becomes Pope
from 22 July 259 CE to 26 December 268 CEDionysius becomes Pope
from 260 CE to 274 CEGallic Empire
from 266 CE to 420 CEJin dynasty
from September 268 CE to January 270 CEClaudius Gothicus becomes Roman emperor
from 5 January 269 CE to 30 December 274 CEFelix I becomes Pope
from 270 CE to 273 CEPalmyrene Empire
from August 270 CE to October 270 CEQuintillus becomes Roman emperor
from September 270 CE to September 275 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
from 4 January 275 CE to 7 December 283 CEEutychian becomes Pope
from September 276 CE to September 282 CEProbus becomes Roman emperor
278 CEDiscovery of 278 Paulina
c. 280sPublication of Records of the Three Kingdoms
from 17 December 283 CE to 22 April 296 CECaius becomes Pope
from 284 CE to 306 CERoman Tetrarchy
from 284 CE to 565 CEDominate
from 20 November 284 CE to 1 May 305 CEDiocletian becomes Roman emperor
from 285 CE to 1453Byzantine Empire
from 285 CE to 476 CEWestern Roman Empire
from 1 April 286 CE to 1 May 305 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
from 30 June 296 CE to 2 April 304 CEMarcellinus becomes Pope
from 300 CE to 1500Hohokam
300 CEOrigins of Qasr Azraq

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