Luke 3:23 states that Jesus was "about 30 years of age" at the start of his ministry.[2][2] There have been different approaches to estimating the date of the start of the ministry of Jesus.[2][23][24][25] One approach, based on combining information from the Gospel of Luke with historical data about Emperor Tiberius yields a date around 28–29 AD/CE, while a second independent approach based on statements in the Gospel of John along with historical information from Josephus about the Temple in Jerusalem leads to a date around AD 27–29.[3][23][24][26][27][note 1]