Who was alive in AD 21?

10 of the people we track were surely alive in AD 21. The best known are listed first, with the age each reached that year.

1. Paul the Apostle14–19
2. Saint Peter21–22
3. Caligula9
4. Tiberius62
5. Strabo81–85
6. Vespasian12
7. Claudius30
8. Linus11–12
9. Mark the Evangelist1–12
10. Galba23