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Millennium: 1st millennium
305 in various calendars
Gregorian calendar 305
Ab urbe condita 1058
Assyrian calendar 5055
Balinese saka calendar 226–227
Bengali calendar −288
Berber calendar 1255
Buddhist calendar 849
Burmese calendar −333
Byzantine calendar 5813–5814
Chinese calendar 甲子(Wood Rat)
3001 or 2941
    — to —
乙丑年 (Wood Ox)
3002 or 2942
Coptic calendar 21–22
Discordian calendar 1471
Ethiopian calendar 297–298
Hebrew calendar 4065–4066
Hindu calendars
 - Vikram Samvat 361–362
 - Shaka Samvat 226–227
 - Kali Yuga 3405–3406
Holocene calendar 10305
Iranian calendar 317 BP – 316 BP
Islamic calendar 327 BH – 326 BH
Javanese calendar 185–186
Julian calendar 305
Korean calendar 2638
Minguo calendar 1607 before ROC
Nanakshahi calendar −1163
Seleucid era 616/617 AG
Thai solar calendar 847–848
Tibetan calendar 阳木鼠年
(male Wood-Rat)
431 or 50 or −722
    — to —
(female Wood-Ox)
432 or 51 or −721

Year 305 (CCCV) 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 Constantius and Valerius (or, less frequently, year 1058 Ab urbe condita). The denomination 305 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]


  • The Daysan River floods Edessa.

By topic[edit]


  • 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 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.