21 BC facts for kids

Millennium:	1st millennium BC
Centuries:	2nd century BC – 1st century BC – 1st century
Decades:	50s BC  40s BC  30s BC  – 20s BC –  10s BC  0s BC  0s
Years:	24 BC 23 BC 22 BC – 21 BC – 20 BC 19 BC 18 BC

21 BC in other calendars

Gregorian calendar	21 BC
Ab urbe condita	733
Armenian calendar	N/A
Assyrian calendar	4730
Bahá'í calendar	-1864–-1863
Bengali calendar	-613
Berber calendar	930
English Regnal year	N/A
Buddhist calendar	524
Burmese calendar	-658
Byzantine calendar	5488–5489
Chinese calendar	己亥年 (2616/2676) — to — 庚子年 (2617/2677)
Coptic calendar	-304–-303
Ethiopian calendar	-28–-27
Hebrew calendar	3740–3741
Hindu calendars
- Vikram Samvat	36–37
- Shaka Samvat	N/A
- Kali Yuga	3081–3082
Holocene calendar	9980
Iranian calendar	642 BP – 641 BP
Islamic calendar	662 BH – 661 BH
Japanese calendar
Korean calendar	2313
Minguo calendar	1932 before ROC 民前1932年
Thai solar calendar	523

Year 21 BC was either a common year starting on Monday, Tuesday or Wednesday or a leap year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Lollius and Lepidus.

Events

• Marcus Vipsanius Agrippa divorces Claudia Marcella. He then marries Julia the Elder, daughter of Caesar Augustus.

Births

• Naevius Sutorius Macro, Roman politician (d. AD 38)