Seven years passed before Paul returned to the area on his third missionary journey.
In Acts 20:5, the switch to "we" tells us that Luke has left Philippi to rejoin Paul in Troas in 58 where they first met up.
It is only in Luke's gospel that we hear the story of the Annunciation, Mary's visit to Elizabeth including the Magnificat, the Presentation, and the story of Jesus' disappearance in Jerusalem.
It is Luke that we have to thank for the Scriptural parts of the Hail Mary: "Hail Mary full of grace" spoken at the Annunciation and "Blessed are you and blessed is the fruit of your womb Jesus" spoken by her cousin Elizabeth.
In Colossians 10-14 speaks of those friends who are with him.
He first mentions all those "of the circumcision" -- in other words, Jews -- and he does not include Luke in this group.
Luke's is the gospel of the poor and of social justice.
Luke's gospel shows special sensitivity to evangelizing Gentiles.
It is only in his gospel that we hear the parable of the Good Samaritan, that we hear Jesus praising the faith of Gentiles such as the widow of Zarephath and Naaman the Syrian (Lk.-27), and that we hear the story of the one grateful leper who is a Samaritan (Lk.-19).
Some early writers claim he was martyred, others say he lived a long life. The earliest tradition we have says that he died at 84 Boeotia after settling in Greece to write his Gospel.
A tradition that Luke was a painter seems to have no basis in fact.