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Paul mentions that Barnabas and Titus went with him to Jerusalem 14 years after his conversion (Gal.2:1). This could only be the trip that he took to Jerusalem with food supplies and money that is mentioned in Acts 11:30.
While Paul, Barnabas, and Titus were at Jerusalem, King Herod Agrippa died. His death is well documented to have occurred in 44 A.D.. If we subtract 14 years from 44 A.D., it brings us to 30 A.D., which is the year of Paul's conversion (Acts 9:1-22), as well as the year of Jesus' death.
Agrippa who was a friend of Caligula, the Emperor of Rome, was made king of the Tetrarchy of his uncle Philip Techoritis and the Tetrarchy of Lysanias (Abla) a few days after Caligula's ascension to power in March of 37 A.D.. Agrippa went to his lands in 39 A.D., but almost immediately returned to Rome to bring accusations against his uncle Antipas to Caligula in 39 A.D..
Upon the assassination of Caligula on January 24, 41 A.D., Agrippa encouraged Claudius to accept the rulership of the Empire. Very early in his reign, in February or March, Claudius confirmed to Agrippa all the gifts of land Caligula had made to him and added to them the rest of the kingdom of Herod the Great.
Josephus says that, after having reigned for 3 years (41-44 A.D.), Agrippa died (Antiquities XIX 8.2). Agrippa's death is also described in Acts 12:21-23. (Source)