A particular hallmark of true history for the Greeks was ‘personal observation (autopsia) and participation in events, travel inquiry, the consultation of eyewitnesses’.37 Acts also has a broad ethnographical and geographical scope, which is the pattern of the Greek histories, with a message about salvation for the nations being announced in the earliest chapters of the Gospel (Lk. 2:29–32; 3:1–6). Luke’s presentation of the impact of Christianity on the ancient world contains a surprising lack of