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Millennium: 1st millennium
307 in various calendars
Gregorian calendar307
Ab urbe condita1060
Assyrian calendar5057
Balinese saka calendar228–229
Bengali calendar−286
Berber calendar1257
Buddhist calendar851
Burmese calendar−331
Byzantine calendar5815–5816
Chinese calendar丙寅年 (Fire Tiger)
3003 or 2943
    — to —
丁卯年 (Fire Rabbit)
3004 or 2944
Coptic calendar23–24
Discordian calendar1473
Ethiopian calendar299–300
Hebrew calendar4067–4068
Hindu calendars
 - Vikram Samvat363–364
 - Shaka Samvat228–229
 - Kali Yuga3407–3408
Holocene calendar10307
Iranian calendar315 BP – 314 BP
Islamic calendar325 BH – 324 BH
Javanese calendar187–188
Julian calendar307
Korean calendar2640
Minguo calendar1605 before ROC
Nanakshahi calendar−1161
Seleucid era618/619 AG
Thai solar calendar849–850
Tibetan calendar阳火虎年
(male Fire-Tiger)
433 or 52 or −720
    — to —
(female Fire-Rabbit)
434 or 53 or −719
Imperial Baths (Kaiserthermen)

Year 307 (CCCVII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Severus and Maximinus (or, less frequently, year 1060 Ab urbe condita). The denomination 307 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.


By place[edit]

Roman Empire[edit]

  • Winter: Emperor Galerius wins his second victory over the Sarmatians.
  • Galerius sends Valerius Severus with the army of northern Italy, to suppress the rebellion in Rome. However, faced with their former emperor Maximian, the soldiers desert him, and Severus flees to Ravenna. Maximian besieges Severus in Ravenna, who then surrenders. Maxentius makes Severus a hostage, in an attempt to keep Galerius at bay.
  • Summer: Anticipating an offensive by Galerius, Maximian travels to Gaul to make an alliance with Constantine I.
  • Late summer or autumn: Galerius invades Italy but Maxentius remains behind the walls of Rome. Galerius finds he cannot besiege the city, and the image of an emperor making efforts against Rome hurts Galerius' image among the troops. The fact that Maxentius is his son-in-law does not help, and Maxentius makes an effort to bribe Galerius' troops. Galerius unsuccessfully attempts to negotiate, and recognizing Maxentius' attempts at bribery and the danger of being trapped in Italy by Maximian and Constantine, Galerius chooses to withdraw from Italy. To satiate his troops during the withdrawal, he pillages the Italian countryside. Meanwhile, Maxentius executes Severus.
  • December: Constantine marries Maximian's daughter Fausta, and is promoted to Augustus by Maximian.
  • Near the end of the year, Galerius gives his wife (Diocletian's daughter) Galeria Valeria the title of Augusta.