Mark writes his Gospel
Mark 1:1; Acts 12:12; 1 Peter 5:13
John Mark, companion of Paul and Peter, wrote the shortest and probably earliest Gospel, a fast-moving account of Jesus as the Son of God who came to serve and to give his life as a ransom for many (Mark 10:45).
The beginning of the Good News of Jesus Christ, the Son of God.
Mark 1:1 (World English Bible)
Papias, writing about AD 125, said that Mark had been Peter's interpreter and wrote down accurately what Peter remembered of the Lord's words and deeds. Mark explains Jewish customs and translates Aramaic words, suggesting that he wrote for Gentile readers, probably in Rome.
Places
Dating notes
Conservative scholars usually date Mark between the mid-50s and the mid-60s AD; many think Matthew and Luke drew on it. Irenaeus placed it after Peter's death; Clement of Alexandria during his lifetime. The date is an estimate; Scripture doesn't say when the book was written.