Acts 16:12

Macedonia : a Roman province north of Greece which included 10 Roman colonies (IBD),citizens of the province of Macedonia
(40° 37´, 22° 55´)

Roman : any person or thing associated with Rome, particularly a person who was a citizen of Rome.
(41° 54´, 12° 29´)

Acts 26:23

Gentile : a non-Jewish person
(31° 46´, 35° 14´); (31° 46´, 35° 14´)

Acts 28:7

Publius : a man who was the highest official on Malta when Paul visited there