ante diem vi kalendas quinctilias
ludi Taurei quinquennales (day 2) — horse races held every five years to appease the divinities of the underworld
23 B.C. (and several years after) — the emperor Augustus is given tribunicia potestas
4 A.D. — the emperor Augustus adopts Tiberius (son of his wife Livia) and Agrippa Postumus (son of Augustus’ daughter Julia and Marcus Vipsanius Agrippa)
221 A.D. — the emperor Elagabalus adopts the future emperor Severus Alexander and gives him the rank of Caesar (?)
363 A.D. — death of the emperor Julian