1 BC

Millennium:	1st millennium BC
Centuries:	2nd century BC 1st century BC 1st century
Decades:	20s BC 10s BC 0s BC 0s 10s
Years:	4 BC 3 BC 2 BC 1 BC AD 1 AD 2 AD 3

1 BC in various calendars

Gregorian calendar	1 BC I BC
Ab urbe condita	753
Ancient Greek era	194th Olympiad, year 4
Assyrian calendar	4750
Balinese saka calendar	N/A
Bengali calendar	−593
Berber calendar	950
Buddhist calendar	544
Burmese calendar	−638
Byzantine calendar	5508–5509
Chinese calendar	己未年 (Earth Goat) 2697 or 2490     — to — 庚申年 (Metal Monkey) 2698 or 2491
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	3100–3101
Holocene calendar	10000
Iranian calendar	622 BP – 621 BP
Islamic calendar	641 BH – 640 BH
Javanese calendar	N/A
Julian calendar	1 BC I BC
Korean calendar	2333
Minguo calendar	1912 before ROC 民前1912年
Nanakshahi calendar	−1468
Seleucid era	311/312 AG
Thai solar calendar	542–543
Tibetan calendar	阴土羊年 (female Earth-Goat) 126 or −255 or −1027     — to — 阳金猴年 (male Iron-Monkey) 127 or −254 or −1026

Year 1 BC was a common year starting on Friday or Saturday in the Julian calendar (the sources differ; see leap year error for further information) and a leap year starting on Thursday in 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".

Events

By place

Han Dynasty

• Emperor Ai of Han dies and is succeeded by his 8-year-old cousin Ping of Han.
• Wang Mang is appointed regent by Grand Empress Dowager Wang Zhengjun, who is his aunt.
• Former regent Dong Xian, who was previously Emperor Ai of Han's lover, commits suicide with his wife.

Roman Empire

• Gaius Caesar marries Livilla, daughter of Antonia Minor and Nero Claudius Drusus, in an effort to gain prestige.
• The Roman theatre in Cartagena, built by Gaius and Lucius Caesar, finishes construction.
• Aulus Caecina Severus was appointed consul by Emperor Augustus succeeding Cossus Cornelius Lentulus Gaetulicus and Lucius Calpurnius Piso (consul 1 BC).

Kingdom of Kush

• The approximate date of Natakamani succeeding Amanishakheto as the King of Kush.

Satavahana dynasty

• Kunatala Satakarni is succeeded by Satakarni III.

By topic

Religion

Main article: Chronology of Jesus

• Estimated birth of Jesus, in the Christian religion, 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. However, at least one scholar thinks Dionysius placed the incarnation of Jesus in the next year, AD 1. Most modern scholars do not consider Dionysius' calculations authoritative, and place the event several years earlier.

Deaths

• August 15 – Ai of Han, Chinese emperor of the Han Dynasty (b. 27 BC)
• Dong Xian, Chinese politician and commander-in-chief (b. 23 BC)
• Xiaoai, Chinese empress and wife of Ai of Han
• Zhao Feiyan, Chinese empress and wife of Cheng of Han (b. 45 BC)

See also

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