Most of the events of the life of Augustus mentioned by Strabo occurred 31–7 BC with a gap 6 BC – 14 AD, which can be interpreted as an interval after first publication in 7 BC. Then in 19 AD a specific reference dates a passage: he said that the Carni and Norici had been at peace since they were "stopped ... from their riotous incursions ..." by Drusus 33 years ago, which was 15 BC, dating the passage 19 AD. The latest event mentioned is the death of Juba at no later than 23 AD, when Strabo was in his 80s. These events can be interpreted as a second edition unless he saved all his notes and wrote the book entirely after the age of 80.