(Acts 18:12). Gallio’s proconsulship can be dated to A.D. 51–52 on the basis of an inscription found at Delphi which mentions him. Working backwards through the second missionary journey of Acts 16–17, we arrive at the spring of A.D. 49 for the beginning of this journey that took Paul to Corinth, the governing seat of Achaia. This would date the Jerusalem conference of Acts 15 in A.D. 48/49. Since that visit to Jerusalem appears to be the one “after fourteen years” mentioned in Galatians 2:1, earlier
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