Year 287 ( CCLXXXVII) was a

common year starting on Saturday A common year starting on Saturday is any non-leap year (i.e. a year with 365 days) that begins on Saturday, 1 January, and ends on Saturday, 31 December. Its dominical letter hence is B. The current year, 2022, is a common year starting on Saturd ...

(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 Mediterr ...

, it was known as the Year of the Consulship of Diocletian and Maximian (or, less frequently, year 1040 ''

Ab urbe condita ''Ab urbe condita'' ( 'from the founding of the City'), or ''anno urbis conditae'' (; 'in the year since the city's founding'), abbreviated as AUC or AVC, expresses a date in years since 753 BC, the traditional founding of Rome. It is an exp ...

''). The denomination 287 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 Coptic ...

became the prevalent method in Europe for naming years.

Events

By place

Roman Empire

* On the same day that he is made

consul Consul (abbrev. ''cos.''; Latin plural ''consules'') was the title of one of the two chief magistrates of the Roman Republic, and subsequently also an important title under the Roman Empire. The title was used in other European city-states throug ...

Maximian Maximian ( la, Marcus Aurelius Valerius Maximianus; c. 250 – c. July 310), nicknamed ''Herculius'', was Roman emperor from 286 to 305. He was ''Caesar'' from 285 to 286, then ''Augustus'' from 286 to 305. He shared the latter title with his ...

launches a campaign against an invasion of Gaul by the

Alemanni The Alemanni or Alamanni, were a confederation of Germanic tribes * * * on the Upper Rhine River. First mentioned by Cassius Dio in the context of the campaign of Caracalla of 213, the Alemanni captured the in 260, and later expanded into pres ...

. After defeating this invasion, he then invades Alemannia itself, entering across the Upper Rhine and returning to Roman territory via the Upper Danube. * Around this time, the future emperor Constantius defeats and captures a Germanic king, the latter having prepared an ambush against the Romans. * Diocletian signs a peace treaty with King

Bahram II Bahram II (also spelled Wahram II or Warahran II; pal, 𐭥𐭫𐭧𐭫𐭠𐭭) was the fifth Sasanian King of Kings (''shahanshah'') of Iran, from 274 to 293. He was the son and successor of Bahram I (). Bahram II, while still in his teens, ...

Persia Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...

, and installs the pro-Roman Arsacid Tiridates III as king over the western portion of

Armenia Armenia (), , group=pron officially the Republic of Armenia,, is a landlocked country in the Armenian Highlands of Western Asia.The UNbr>classification of world regions places Armenia in Western Asia; the CIA World Factbook , , and ''Ox ...

. * Diocletian re-organizes the

Mesopotamia Mesopotamia ''Mesopotamíā''; ar, بِلَاد ٱلرَّافِدَيْن or ; syc, ܐܪܡ ܢܗܪ̈ܝܢ, or , ) is a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the F ...

n frontier, and fortifies various locations including the city of

Circesium Circesium ( syc, ܩܪܩܣܝܢ ', grc, Κιρκήσιον), known in Arabic as al-Qarqisiya, was a Roman fortress city near the junction of the Euphrates and Khabur rivers, located at the empire's eastern frontier with the Sasanian Empire. It wa ...

(modern

Busayrah Al-Busayrah ( ar, الْبُصَيْرَة, al-Buṣayrah) is a town in eastern Syria, administratively part of the Deir ez-Zor Governorate. The town is located, at the confluence of the Euphrates and Khabur Rivers, southeast of Deir ez-Zor. Nearb ...

) on the

Euphrates The Euphrates () is the longest and one of the most historically important rivers of Western Asia. Tigris–Euphrates river system, Together with the Tigris, it is one of the two defining rivers of Mesopotamia ( ''the land between the rivers'') ...

. Around this time, he begins the construction of the

Strata Diocletiana The ''Strata Diocletiana'' (Latin for "Road of Diocletian") was a fortified road that ran along the eastern desert border, the ''limes Arabicus'', of the Roman Empire. As its name suggests and as it appears on milestones, it was constructed unde ...

. Throughout his reign, similar fortification efforts are conducted on the other frontiers as well, with fortifications constructed or restored behind, on and beyond the borders. Conscription and the number of legions increase, although the legions themselves are reformed into smaller and more flexible units. At some point in time, Diocletian may have also established the late Roman military system of

Comitatenses The comitatenses and later the palatini were the units of the field armies of the late Roman Empire. They were the soldiers that replaced the legionaries, who had formed the backbone of the Roman military since the Marian reforms. Organization ...

(field army units) and

Limitanei The ''līmitāneī'' (Latin, also called ''rīpēnsēs''), meaning respectively "the soldiers in frontier districts" (from the Latin phrase līmēs, meaning a military district of a frontier province) or "the soldiers on the riverbank" (from the ...

(border units), but some scholars date this development to the reign of

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 ...

(r. 306-337). * September – The first

Indiction An indiction ( la, indictio, impost) was a periodic reassessment of taxation in the Roman Empire which took place every fifteen years. In Late Antiquity, this 15-year cycle began to be used to date documents and it continued to be used for this p ...

begins.

Births

Deaths

Justa and Rufina Saints Justa and Rufina (Ruffina) ( es, Santa Justa y Santa Rufina) are venerated as martyrs. They are said to have been martyred at Hispalis (Seville) during the 3rd century. Only St. Justa (sometimes "Justus" in early manuscripts) is mentione ...

, Christian martyrs *

Maurice Maurice may refer to: People * Saint Maurice (died 287), Roman legionary and Christian martyr * Maurice (emperor) or Flavius Mauricius Tiberius Augustus (539–602), Byzantine emperor *Maurice (bishop of London) (died 1107), Lord Chancellor and ...

(or Mauritius), Christian martyr *

Quentin Quentin is a French male given name from the Latin first name ''Quintinus'', diminutive form of ''Quintus (praenomen), Quintus'', that means "the fifth".Albert Dauzat, ''Noms et prénoms de France'', Librairie Larousse 1980, édition revue et com ...

, Christian missionary and martyr *

Valerius and Rufinus Valerius and Rufinus (died 287 AD) are venerated as Christian saints and martyrs. Their legend states that they were imperial tax collectors in Soissons who were pious Christians. They were ordered to be arrested by Rictius Varus, the ''praefectus- ...

, Christian martyrs *

Victoricus, Fuscian, and Gentian Victoricus (or Victorice, Victoric), Fuscian (or Fulcian, Fulcien, Fuscien) and Gentian (or Gentien) (died circa 287–303) were three Christian martyrs later venerated as Roman Catholic saints. Their feast day falls on 11 December. Hagiography ...

, Christian martyrs

References

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