Antioch on the Orontes is modern Antakya
Barnabas goes to Tarsus to find Paul and brings him to Antioch, where the two teach the church for a whole year. There the disciples are first called Christians.
Sources
25Then Barnabas went to Tarsus to look for Saul, 26and when he found him, he brought him back to Antioch. So for a full year they met together with the church and taught large numbers of people. The disciples were first called Christians at Antioch.