|Millennium:||1st millennium BC|
|5 BC by topic|
|Gregorian calendar||5 BC|
|Ab urbe condita||749|
|Ancient Greek era||193rd Olympiad, year 4|
|Balinese saka calendar||N/A|
|Chinese calendar||乙卯年 (Wood Rabbit)|
2692 or 2632
— to —
丙辰年 (Fire Dragon)
2693 or 2633
|Coptic calendar||−288 – −287|
|Ethiopian calendar||−12 – −11|
|- Vikram Samvat||52–53|
|- Shaka Samvat||N/A|
|- Kali Yuga||3096–3097|
|Iranian calendar||626 BP – 625 BP|
|Islamic calendar||645 BH – 644 BH|
|Julian calendar||5 BC|
|Minguo calendar||1916 before ROC|
|Seleucid era||307/308 AG|
|Thai solar calendar||538–539|
122 or −259 or −1031
— to —
123 or −258 or −1030
Year 5 BC was a common year starting on Monday or Tuesday (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 Saturday of the Proleptic Julian calendar. In the Roman world, it was known as the Year of the Consulship of Augustus and Sulla (or, less frequently, year 749 Ab urbe condita). The denomination 5 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.
- March – Probable nova in the constellation Aquila.
- c. December – Probable supernova in the constellation Capricornus.
- January 13 – Emperor Guangwu of Han, ruler of China (d. AD 57)
- Lucius Vitellius the Elder, Roman consul and Governor of Syria (d. AD 51)
- The birthdates of John the Baptist and Jesus are not generally known, but 5 BC is often assumed to be the date. The spring Passover feast (often around April 21) has been cited as a possible date for the birth of Christ, assuming that this had relevance to being a Messiah claimant, or that his birthday might have been related to Passover. Others theologically tie his birth to Sukkot, the fall Feast of Tabernacles.
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