Who was Luke?

Additional... Although St. Paul was not been with Jesus Christ he is an apostle. St. Peter, St. John and other disciples of Jesus Christ was been with St. Paul during early evangelize of Christianity. St. Luke is disciple of St. Paul.

I have read on a book that telling me Luke was a doctor on those time. Is it correct? It said Luke life on Jesus time so how can Luke is disciple of St. Paul? Am i read a wrong book? Happy mylotting.

St. Paul and St. Luke are not a direct witnesses of the words of Jesus Christ that's why they are called Apostles. They are the followers of the words of Jesus Christ. Most of their writings was accounted from the early Christians and from the direct witnesses such as the Disciples of Jesus Christ like St. Peter. St. James and St. John. St. Paul and St. Luke was born on A.D. either from A.D. 1 to A.D. 10. (Luke 1:2). St. Paul was already 30 to 35 of age when he was converted. St. Paul and St. Luke evangelical missions together with their age was around 50 or 55. Then St. Luke was became the disciple of St. Paul. St. Paul and St. Luke evangelical mission are mostly on the conversions of the Gentiles including Greeks and Romans to Christianity. St. Luke is patron saint of physicians, doctors or the field of medicines. Although he was born slave as a Greek or Gentile he manage to learn about medicines. During the final persecutions, sufferings and decapitations by the Romans of St. Paul, St. Luke was always with him. Here are the references for additional informations. St. Luke http://en.wikipedia.org/wiki/St_Luke http://www.catholic.org/saints/saint.php?saint_id=76 http://www.novareinna.com/festive/luke.html http://wiki.answers.com/Q/When_was_Saint_Luke_the_gospel_writer_born St. Paul http://en.wikipedia.org/wiki/St_Paul http://mb-soft.com/believe/txo/paul.htm