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|
|Gregorian calendar||21 BC
|Ab urbe condita||733|
|English Regnal year||N/A|
— to —庚子年
|- Vikram Samvat||36–37|
|- Shaka Samvat||N/A|
|- Kali Yuga||3081–3082|
|Iranian calendar||642 BP – 641 BP|
|Islamic calendar||662 BH – 661 BH|
|Minguo calendar||1932 before ROC
|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.
- Marcus Vipsanius Agrippa divorces Claudia Marcella. He then marries Julia the Elder, daughter of Caesar Augustus.
21 BC Facts for Kids. Kiddle Encyclopedia.