Year 321 ( CCCXXI) was a

common year starting on Sunday A common year starting on Sunday is any non-leap year (i.e. a year with 365 days) that begins on Sunday, 1 January, and ends on Sunday, 31 December. Its dominical letter hence is A. The most recent year was 2017 and the next one will be 2023 in the ...

(link will display the full calendar) of the

Julian calendar The Julian calendar, proposed by Roman consul Julius Caesar in 46 BC, was a reform of the Roman calendar. It took effect on , by edict. It was designed with the aid of Greek mathematicians and astronomers such as Sosigenes of Alexandr ...

. In the

Roman Empire The Roman Empire ( la, Imperium Romanum ; grc-gre, Βασιλεία τῶν Ῥωμαίων, Basileía tôn Rhōmaíōn) was the post- Republican period of ancient Rome. As a polity, it included large territorial holdings around the Mediter ...

, it was known as the Year of the Consulship of Crispus and Constantinus (or, less frequently, year 1074 '' Ab urbe condita''). The denomination 321 for this year has been used since the early medieval period, when the

Anno Domini The terms (AD) and before Christ (BC) are used to label or number years in the Julian and Gregorian calendars. The term is Medieval Latin and means 'in the year of the Lord', but is often presented using "our Lord" instead of "the Lord", ...

calendar era A calendar era is the period of time elapsed since one '' epoch'' of a calendar and, if it exists, before the next one. For example, it is the year as per the Gregorian calendar, which numbers its years in the Western Christian era (the Copti ...

became the prevalent method in Europe for naming years.

Events

By topic

Roman Empire

* Emperor

Constantine I Constantine I ( , ; la, Flavius Valerius Constantinus, ; ; 27 February 22 May 337), also known as Constantine the Great, was Roman emperor from AD 306 to 337, the first one to Constantine the Great and Christianity, convert to Christiani ...

expels the

Goths The Goths ( got, 𐌲𐌿𐍄𐌸𐌹𐌿𐌳𐌰, translit=''Gutþiuda''; la, Gothi, grc-gre, Γότθοι, Gótthoi) were a Germanic people who played a major role in the fall of the Western Roman Empire and the emergence of medieval Europe ...

from the

Danube The Danube ( ; ) is a river that was once a long-standing frontier of the Roman Empire and today connects 10 European countries, running through their territories or being a border. Originating in Germany, the Danube flows southeast for , p ...

frontier and repairs Trajan's Bridge. He leads an expedition into the old province

Dacia Dacia (, ; ) was the land inhabited by the Dacians, its core in Transylvania, stretching to the Danube in the south, the Black Sea in the east, and the Tisza in the west. The Carpathian Mountains were located in the middle of Dacia. It ...

(modern

Romania Romania ( ; ro, România ) is a country located at the crossroads of Central, Eastern, and Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, Serbia to the southwest, Moldova to the east, and ...

) and makes peace with the barbarians. * March 7 - Constantine I signs legislation directing urban residents to refrain from work, and businesses to be closed, on the "venerable day of the Sun". An exception is made for agriculture.

Asia

Tuoba Heru Tuoba Heru (; died 325) ruled as prince of the Tuoba Dai 321 to 325. He was the son of Tuoba Yituo, and the brother of Tuoba Pugen and Tuoba Hena. In 321, when his cousin Tuoba Yulü Tuoba Yulü (; died 321) ruled as prince of the Tuoba Dai 316 ...

launches a

coup d'état A coup d'état (; French for 'stroke of state'), also known as a coup or overthrow, is a seizure and removal of a government and its powers. Typically, it is an illegal seizure of power by a political faction, politician, cult, rebel group, m ...

against his cousin

Tuoba Yulü Tuoba Yulü (; died 321) ruled as prince of the Tuoba Dai 316 to 321. He was the son of Tuoba Fu, and the father of Tuoba Yihuai and Tuoba Shiyijian. In 310, Tuoba Yulü was ordered by Tuoba Yilu to assist Liu Kun, the Governor of Bingzhou (并 ...

, and becomes the new Prince of Dai.

By topic

Art and Science

Calcidius Calcidius (or Chalcidius) was a 4th-century philosopher (and possibly a Christians, Christian) who translated the first part (to 53c) of Plato's ''Timaeus (dialogue), Timaeus'' from Greek (language), Greek into Latin around the year 321 and provid ...

translates

Plato Plato ( ; grc-gre, Πλάτων ; 428/427 or 424/423 – 348/347 BC) was a Greek philosopher born in Athens during the Classical period in Ancient Greece. He founded the Platonist school of thought and the Academy, the first institution ...

into

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

Food and Drink

* Constantine I assigns convicts to grind Rome's flour, in a move to hold back the rising price of food in an empire whose population has shrunk as a result of

plague Plague or The Plague may refer to: Agriculture, fauna, and medicine *Plague (disease), a disease caused by ''Yersinia pestis'' * An epidemic of infectious disease (medical or agricultural) * A pandemic caused by such a disease * A swarm of pe ...

(see

309 __NOTOC__ Year 309 ( CCCIX) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Licinianus and Constantius (or, less frequentl ...

AD).

Religion

* The Christian Church is allowed to hold property. * A synod held in

Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandri ...

condemns Arianism. * Jews in today's Germany are documented for the first time, in Colonia Agrippinensium (moder-day

Cologne Cologne ( ; german: Köln ; ksh, Kölle ) is the largest city of the German western state of North Rhine-Westphalia (NRW) and the fourth-most populous city of Germany with 1.1 million inhabitants in the city proper and 3.6 millio ...

Births

* Cheng of Jin (or Shigen), Chinese emperor (d.

342 __NOTOC__ Year 342 ( CCCXLII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Claudius (or, less frequently, year 109 ...

) * Du Lingyang (or Chenggong), Chinese empress (d. 341) *

Valentinian I Valentinian I ( la, Valentinianus; 32117 November 375), sometimes called Valentinian the Great, was Roman emperor from 364 to 375. Upon becoming emperor, he made his brother Valens his co-emperor, giving him rule of the eastern provinces. Val ...

(the Great), Roman emperor (d.

375 __NOTOC__ Year 375 ( CCCLXXV) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year after the Consulship of Augustus and Equitius (or, less frequently, year 1 ...

)

Deaths

, Chinese prince of the

Tuoba The Tuoba (reconstructed Middle Chinese pronunciation: *''tʰak-bɛt''), also known as the Taugast or Tabgach ( otk, 𐱃𐰉𐰍𐰲 ''Tabγač''), was a Xianbei clan in Imperial China.Wei Shou. ''Book of Wei''. Vol. 1 During the Sixteen Kingdo ...

Dai *

Zu Ti Zu Ti (266–321), courtesy name Shizhi, was a Chinese military general of the Jin dynasty. Between 313 and 321, he commanded an expeditionary force to reclaim territory in northern China that were lost during the Upheaval of the Five Barbaria ...

(or Shizhi), Chinese general and adviser (b.

266 __NOTOC__ Year 266 ( CCLXVI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gallienus and Sabinillus (or, less frequently, year 1019 ...

)

References

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