Emperor from 14 to 37 A.D., he mailed it in the last 10 years from Capri
In 
14 A.D., on the death of Augustus, Tiberius had the appallingly hard task of being 
first ... the supervision first of Livia and then of Antonia, and several years on 
Capri ..... which were written in the last decade of his reign during the northern 
wars.