The 3rd century

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The 3rd century201–300

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What were the key events of the 3rd century?

In the 3rd century (201–300), the Eastern Han fell and China entered the Three Kingdoms period, until the Western Jin conquered Wu and reunified the country. In Japan, Queen Himiko sent envoys to the Wei kingdom and keyhole-shaped burial mounds were built, while the Sasanian Empire arose in the west and Rome entered the era of the soldier emperors.

  1. Zhou Yu defeats Cao Cao's fleet at Red CliffsAsia
  2. Caracalla issues the Antonine ConstitutionEurope
  3. Eastern Han falls; Three Kingdoms period beginsAsia
  4. Sasanian Empire founded in IranMiddle East
  5. Era of the soldier emperors begins in RomeEurope
  6. Himiko sends envoys to WeiAsia
  7. Keyhole tombs built as Yamato power growsAsia
  8. Western Jin conquers Wu and unifies ChinaAsia

Summaries are written by the site editors.

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Key events of the 3rd century (timeline · excerpt)

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200s

Dec 208

Zhou Yu defeats Cao Cao's fleet at Red Cliffs

Asia

210s

Following the death of the Roman Emperor Septimius Severus at Eboracum (modern York, England) while preparing to lead a campaign against the Caledonians, the empire is left in the control of his two quarrelling sons, Caracalla and Geta, whom he had instructed to make peace.

Europe

Jul 11, 212

Caracalla issues the Antonine Constitution

Europe

Roman emperor Caracalla is assassinated and is succeeded by his Praetorian Guard prefect, Marcus Opellius Macrinus.

Europe

Battle of Antioch: With the support of the Syrian legions, Elagabalus defeats the forces of emperor Macrinus.

Middle East

220s

220

Eastern Han falls; Three Kingdoms period begins

Asia

Emperor Xian of Han is forced to abdicate the throne by Cao Cao's son Cao Pi, ending the Han dynasty.

Asia

Liu Bei, Chinese warlord, proclaims himself emperor of Shu Han, the successor of the Han dynasty.

Asia

Roman emperor Elagabalus adopts his cousin Alexander Severus as his heir and grants him the title of Caesar.

Europe

Roman emperor Elagabalus is murdered alongside his mother, Julia Soaemias. He is replaced by his 14-year old cousin, Severus Alexander.

Europe

The Battle of Hormozdgan is fought. Ardashir I defeats and kills Artabanus V, effectively ending the Parthian Empire.

Middle East

Cao Rui succeeds his father as emperor of Wei.

Asia

Sun Quan proclaims himself emperor of Eastern Wu.

Asia

230s

Pope Pontian succeeds Urban I as the eighteenth pope. After being exiled to Sardinia, he became the first pope to resign his office.

Europe

Roman emperor Severus Alexander is murdered, marking the start of the Crisis of the Third Century.

Europe

Pope Pontian resigns. He is exiled to the mines of Sardinia, along with Hippolytus of Rome.

Europe

Pope Anterus succeeds Pontian as the nineteenth pope.

Europe

Pope Fabian succeeds Anterus to become the twentieth pope of Rome.

Europe

During the year of Six Emperors, forces of Gordian I and Gordian II are defeated by those of Maximinus Thrax in the battle of Carthage.

Africa

The Praetorian guard revolts against emperors Balbinus and Pupienus and arrests them.

Europe

239

Himiko sends envoys to Wei

Asia

240s

Shapur I becomes co-emperor of the Sasanian Empire with his father Ardashir I.

Middle East

Philip the Arab marks the millennium of Rome with a celebration of the ludi saeculares.

Middle EastEurope

250s

Emperor Decius orders everyone in the Roman Empire (except Jews) to make sacrifices to the Roman gods.

Europe

Pope Fabian is martyred during the Decian persecution.

Europe

Pope Stephen I succeeds Pope Lucius I, becoming the 23rd pope of the Catholic Church, and immediately takes a stand against Novatianism.

Europe

Pope Sixtus II is arrested while celebrating mass and then beheaded with several of his deacons.

Europe

Election of Pope Dionysius after the death of Pope Sixtus II in the persecutions of Emperor Valerian in the previous year.

Europe

260s

Sima Zhao's regicide of Cao Mao: The figurehead Wei emperor Cao Mao personally leads an attempt to oust his regent, Sima Zhao; the attempted coup is crushed and the emperor killed.

Asia

270s

A temple to Sol Invictus is dedicated in Rome by Emperor Aurelian.

Europe

For the last time, the Roman Senate chooses an emperor; Marcus Claudius Tacitus is elected.

Europe

280s

280

Western Jin conquers Wu and unifies China

Asia

Diocletian is chosen as Roman emperor.

Europe

Roman emperor Diocletian names Maximian his co-emperor ("Augustus").

Europe

Diocletian appoints Maximian as Caesar and co-ruler.

Middle East

290s

Emperor Diocletian and Maximian appoint Constantius Chlorus and Galerius as Caesars. This is considered the beginning of the Tetrarchy, known as the Quattuor Principes Mundi ("Four Rulers of the World").

Europe

Roman Emperors Diocletian and Maximian appoint Galerius as Caesar to Diocletian, beginning the period of four rulers known as the Tetrarchy.

Europe

Pope Marcellinus begins his papacy.

Europe

Roman Emperor Maximian concludes his campaign in North Africa and makes a triumphal entry into Carthage.

EuropeAfrica

EventNameFamous birthEvent in more than one region

Source: Wikipedia date pages ("January 1" … "December 31") / CC BY-SA 4.0. Regions are assigned by the site editors.

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Dates and events are based on Wikipedia and other references. Summaries and regions are written by the site editors.

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