(trouble ) signifies in the New Testament a Roman province which included the whole of the Peloponnesus and the greater part of Hellas proper, with the adjacent islands. This province, with that of Macedonia, comprehended the while of Greece; hence Achaia and Macedonia are frequently mentioned together in the New Testament to indicate all Greece. (Acts 18:12; 19:21; Romans 15:26; 16:5; 1 Corinthians 16:15; 2 Corinthians 7:5; 9:2; 11:10; 1 Thessalonians 1:7,8) In the time of the emperor Claudius it was governed by a proconsul, translated in the Authorized Version "deputy," of Achaia. (Acts 18:12)
These files are public domain.
Smith, William, Dr. "Entry for 'Acha’ia'". "Smith's Bible Dictionary".