1 BC

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Millennium: 1st millennium BC
Centuries: 2nd century BC1st century BC1st century
Decades: 30s BC  20s BC  10s BC  – 0s BC –  0s  10s  20s
1 BC in other calendars
Gregorian calendar 1 BC
Ab urbe condita 753
Ancient Greek era 194th Olympiad, year 4
Assyrian calendar 4750
Bengali calendar −593
Berber calendar 950
Buddhist calendar 544
Burmese calendar −638
Byzantine calendar 5508–5509
Chinese calendar 己未(Earth Goat)
2696 or 2636
    — to —
庚申年 (Metal Monkey)
2697 or 2637
Coptic calendar −284 – −283
Discordian calendar 1166
Ethiopian calendar −8 – −7
Hebrew calendar 3760–3761
Hindu calendars
 - Vikram Samvat 56–57
 - Shaka Samvat N/A
 - Kali Yuga 3101–3102
Holocene calendar 10000
Iranian calendar 622 BP – 621 BP
Islamic calendar 641 BH – 640 BH
Julian calendar 1 BC
Korean calendar 2333
Minguo calendar 1912 before ROC
Seleucid era 311/312 AG
Thai solar calendar 542–543

Year 1 BC was a common year starting on Friday or Saturday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a leap year starting on Thursday of the Proleptic Julian calendar. It is also a leap year starting on Saturday, in the Proleptic Gregorian calendar. At the time, it was known as the Year of the Consulship of Lentulus and Piso (or, less frequently, year 753 Ab urbe condita). The denomination 1 BC 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. The following year is 1 AD in the widely used Julian calendar, which does not have a "year zero".


By place[edit]

Roman Empire[edit]


By topic[edit]


  • Birth of Jesus, in the religion of Christianity, was conceived 25 March and born on 25 December, as assigned by Dionysius Exiguus in his anno Domini era; according to most scholars, Dionysius used the word "incarnation", but it is not known whether he meant conception or birth.[1][2] However, at least one scholar thinks Dionysius placed the incarnation of Jesus in the next year, AD 1.[1][2] Most modern scholars do not consider Dionysius' calculations authoritative, themselves placing the event several years earlier (see Chronology of Jesus).[3]



See also[edit]

  • Year zero for the different conventions that historians and astronomers use for "BC" years


  1. ^ a b Georges Declercq, Anno Domini: The origins of the Christian Era (Turnhout, Belgium: Brepols, 2000), pp.143–147.
  2. ^ a b G. Declercq, "Dionysius Exiguus and the introduction of the Christian Era", Sacris Erudiri 41 (2002) 165–246, pp.242–246. Annotated version of a portion of Anno Domini.
  3. ^ James D. G. Dunn, Jesus Remembered, Eerdmans Publishing (2003), page 324.