Nero is adopted by Claudius as his son and marries his 14-year-old daughter Claudia Octavia. Tiridates I, brother of Vologases I, comes to power in Armenia as an adversary of the Romans. Paul the Apostle writes his epistle to the Galatians from Ephesus (approximate date).
Decimus Junius Silanus Torquatus and Quintus Haterius Antoninus become Roman consuls.source
Claudius secures a senatorial decree that gives jurisdiction in financial cases to imperial procurators. This marks a significant strengthening of imperial powers at the expense of the Senate.source
June 9 – Nero is adopted by Claudius as his son and marries his 14-year-old daughter Claudia Octavia.source
Seneca writes the tragedy Agamemnon, which he intends to be read as the last chapter of a trilogy including two of his other tragedies, Medea and Edipus.source