The Open Door in Troas

From Troas, the Gospel enters Europe, the first European church is Philippi, and the first European converts are the woman Lydia, the jailor and their families.

12 Furthermore, when I came to Troas to preach Christ’s gospel, and a door was opened to me by the Lord, 13 I had no rest in my spirit, because I did not find Titus my brother; but taking my leave of them, I departed for Macedonia.
— 2 Cor. 2:12-13