Easton's Bible Dictionary
This province of Galatia, within the limits of which these Celtic tribes were confined, was the central region of Asia Minor.
During his second missionary journey Paul, accompanied by Silas and Timothy (Acts 16:6 ), visited the "region of Galatia," where he was detained by sickness (Galatians 4:13 ), and had thus the longer opportunity of preaching to them the gospel. On his third journey he went over "all the country of Galatia and Phrygia in order" (Acts 18:23 ). Crescens was sent thither by Paul toward the close of his life (2 Timothy 4:10 ).
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain.
Easton, Matthew George. Entry for 'Galatia'. Easton's Bible Dictionary. https://www.studylight.org/dictionaries/eng/ebd/g/galatia.html. 1897.