20 BC

Year 20 BC was either a common year starting on Wednesday or Thursday or a leap year starting on Tuesday, Wednesday or Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Appuleius and Nerva.

20 BC in other calendars

Gregorian calendar	20 BC XIX BC
Ab urbe condita	734
Ancient Greek era	190th Olympiad (victor)¹
Assyrian calendar	4731
Balinese saka calendar	N/A
Bengali calendar	−612
Berber calendar	931
Buddhist calendar	525
Burmese calendar	−657
Byzantine calendar	5489–5490
Chinese calendar	庚子年 (Metal Rat) 2677 or 2617     — to — 辛丑年 (Metal Ox) 2678 or 2618
Coptic calendar	−303 – −302
Discordian calendar	1147
Ethiopian calendar	−27 – −26
Hebrew calendar	3741–3742
Hindu calendars
- Vikram Samvat	37–38
- Shaka Samvat	N/A
- Kali Yuga	3081–3082
Holocene calendar	9981
Iranian calendar	641 BP – 640 BP
Islamic calendar	661 BH – 660 BH
Javanese calendar	N/A
Julian calendar	20 BC XIX BC
Korean calendar	2314
Minguo calendar	1931 before ROC 民前1931年
Nanakshahi calendar	−1487
Seleucid era	292/293 AG
Thai solar calendar	523–524
Tibetan calendar	ལྕགས་ཕོ་བྱི་བ་ལོ་ (male Iron-Rat) 107 or −274 or −1046     — to — ལྕགས་མོ་གླང་ལོ་ (female Iron-Ox) 108 or −273 or −1045

Events

• Rome and Parthia make a peace treaty
• King Herod the Great begins to renovate the Temple in Jerusalem
• Maison Carrée, Nîmes, France, is built (approximate date)
• Marcus Verrius Flaccus' dictionary De verborum significatu is published. It is one of the first great dictionaries in history.
• Shakas no longer control northwest India

Births

for more information, see Category:20 BC births.

• Gaius Caesar, grandson of Augustus Caesar (d. AD 4)
• Philo, the philosopher (approximate date) (d. AD 50)