20 BC

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Millennium: 1st millennium BC
Centuries: 2nd century BC1st century BC1st century
Decades: 50s BC  40s BC  30s BC  – 20s BC –  10s BC  0s BC  0s
Years: 23 BC 22 BC 21 BC20 BC19 BC 18 BC 17 BC
20 BC in other calendars
Gregorian calendar 20 BC
Ab urbe condita 734
Ancient Greek era 190th Olympiad (victor
Assyrian calendar 4731
Bengali calendar −612
Berber calendar 931
Buddhist calendar 525
Burmese calendar −657
Byzantine calendar 5489–5490
Chinese calendar 庚子(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
Korean calendar 2314
Minguo calendar 1931 before ROC
Nanakshahi calendar −1487
Seleucid era 292/293 AG
Thai solar calendar 523–524

Year 20 BC was either a common year starting on Wednesday or Thursday or a leap year starting on Tuesday, Wednesday or Thursday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Tuesday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Appuleius and Nerva (or, less frequently, year 734 Ab urbe condita). The denomination 20 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.


By place[edit]

Roman Empire[edit]