Year 305 ( CCCV) was a
common year starting on Monday A common year starting on Monday is any non-leap year A leap year (also known as an intercalary year or year) is a that contains an additional day (or, in the case of a , a month) added to keep the calendar year synchronized with the or . Bec ...
(link will display the full calendar) of the
Julian calendar The Julian calendar, proposed by Julius Caesar Gaius Julius Caesar (; 12 July 100 BC – 15 March 44 BC) was a Roman Roman or Romans usually refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century B ...
. At the time, it was known as the Year of the Consulship of Constantius and Valerius (or, less frequently, year 1058 ''
Ab urbe condita 300px, Antoninianus of Pacatianus, Roman usurper, usurper of Roman emperor Philip the Arab, Philip in 248. It reads ''ROMAE AETERANMIL ESIMOET PRIMO'', 'To eternal Rome, in its one thousand and first year.' ''Ab urbe condita'' ( ...
''). The denomination 305 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 calendar The Gregorian calendar is the used in most of the world. It was introduced in October 1582 by as a modification of the , r ...
calendar era #REDIRECT Calendar era #REDIRECT 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 year ...
became the prevalent method in Europe for naming years.


By place

Roman Empire

May 1 Events Pre-1600 * 305 – Diocletian Diocletian (; la, Gaius Aurelius Valerius Diocletianus; born Diocles; 22 December c. 244 – 3 December 311) was from 284 to 305. Born to a family of low status in , Diocletian rose through the ...
– Emperor
Diocletian Diocletian (; la, Gaius Aurelius Valerius Diocletianus; born Diocles; 22 December c. 244 – 3 December 311) was from 284 to 305. Born to a family of low status in , Diocletian rose through the ranks of the military to become a commander of ...
abdicates at age 60, and retires to his
palace A palace is a grand residence, especially a royal residence, or the home of a head of state A head of state (or chief of state) is the public persona A persona (plural personae or personas), depending on the context, can refer to eit ...

Salona Salona ( grc, Σάλωνα) was an ancient city and the capital of the Roman Roman or Romans most often refers to: *Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus , image_ma ...
Split Split(s) or The Split may refer to: Places * Split, Croatia, the largest coastal city in Croatia * Split Island, Canada, an island in the Hudson Bay * Split Island, Falkland Islands * Split Island, Fiji, better known as Hạfliua Arts, entertain ...
) on the
Adriatic coast The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkans The Balkans ( ), also known as the Balkan Peninsula, are a geographic area in southeastern Europe Europe is a continent A continent is ...

Adriatic coast
, after a reign of nearly 21 years, in which the last vestiges of
republican Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or against ...
government have disappeared. *
Maximian Maximian ( la, Marcus Aurelius Valerius Maximianus; c. 250 – c. July 310), nicknamed Herculius, was Roman emperor from 286 to 305. He was ''Caesar (title), Caesar'' from 285 to 286, then ''Augustus (title), Augustus'' from 286 to 305. He share ...

retires from office, and leaves for
Campania it, Campano (man) it, Campana (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 ...
(southern Italy), to live a life of ease in his luxury Roman villa, villas. * Constantius Chlorus and Galerius are declared Augustus (title), Augusti; Flavius Valerius Severus and Maximinus Daza are appointed Caesar (title), Caesars. * In the Western Roman Empire, Western Empire, the capital is moved from Rome to Milan. Constantius Chlorus requests leave for his son Constantine the Great, Constantine I, who remains at Galerius's court in Nicomedia, as a virtual hostage. * Summer – Constantine I joins his father in Gaul, from Bononia (Boulogne-sur-Mer, Boulogne); they cross the English Channel, Channel to Roman Britain, Britain and make their way to Eboracum (York), capital of Britannia Secunda and home to a large military base, in order to deal with a rebellion by the Picts. * Maximinus Daza (305–313) persecutes the Christians of Roman Egypt, Egypt, many of whom take refuge in the desert. In time, this refuge leads to the monastic life. In these monasteries, Coptic language, Coptic writing develops, supporting the propagation of Christian texts. * Patron saint, Patron of Pozzuoli, Proculus of Pozzuoli, Saint Proculus, and patron of Naples, Januarius, Saint Januarius are thrown to wild beasts in Pozzuoli's Flavian Amphitheater (Pozzuoli), Flavian Amphitheater, then beheaded at Solfatara (volcano), Solfatara.


* The Daysan River floods Edessa, Mesopotamia, Edessa.

By topic


* Landowners dominate the Roman Empire, and enjoy the title of senator, which exempts them from the crushing taxes imposed on the rest of the population. The Senate has lost all its power and the landowners almost never attend Senate sessions. Members of municipal senates (''curiales'' or ''decurion (administrative), decuriones'') are charged with the responsibility of collecting taxes and paying arrears; smaller landowners are held responsible for providing recruits for the Roman army, and with keeping wastelands under cultivation.


* Catherine of Alexandria, Catherine makes a public confession of the Christian gospel at a sacrifice, sacrificial feast ordered by Maximinus Daza at Alexandria. A virginity, virgin of royal descent, she is tortured on a spiked wheel (later called the "Catherine Wheel") and decapitation, beheaded; her remains are spirited to Mount Sinai. * The Council of Illiberis decrees that priests must be celibacy, celibate. Additionally, it condemns visiting the homes of Jews and prohibits Christian women from marrying Jews, unless they have converted.


* Pope Damasus I, Saint Damasus, pope (366—383)


* Januarius, patron saint of Naples * Catherine of Alexandria, Saint Catherine of Alexandria, martyr and virginity, virgin * Sossianus Hierocles, Hierocles, proconsul of Bithynia who instigated the persecution of the Christians under Galerius * The beheading of Saint Panteleimon the Great Martyr & Healer * Porphyry (philosopher), Porphyry, Neoplatonism, Neoplatonist philosopher * Proculus of Pozzuoli, patron saint of Pozzuoli * Tuoba Yituo, chieftain of the Tuoba clan (China) * Wang Rong (Jin dynasty), Wang Rong, politician of the Jin dynasty (266–420), Jin dynasty (b. 234)


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