The ancient city of Thyatira is occupied by the modern town of Akhisar meaning in Turkish "white castle" named from the ruins of an old castle. Because of modern occupation, not much from its ancient archeological remains is seen.

Thyatira was an insignificant town until it was refounded by Seleucus Nicator in the beginning of the 3C BC. It was originally a military fort but lost this purpose with the Pax Romana and became a wealthy commercial city. The city had a number of trade guilds. Every skilled worker was a member of a union some of which could be listed as tailors, woolworkers, tanners, potters, bakers, etc.

Commercial guilds in Thyatira were connected with the pagan religions of the city and involved participation in pagan ritual, feasts and celebrations.

Thyatira, One of the Seven Churches of Revelation 

(Revelation 2:18-29)

(18) "Write this letter to the leader of the church in Thyatira:

" This is a message from the Son of God, whose eyes penetrate like flames of fire, whose feet are like glowing brass.

(19) "I am aware of all your good deeds, your kindness to the poor, your gifts and service to them; also I know your love and faith and patience and I can see your constant improvement in all these things. (20) "Yet I have this against you: You are permitting that woman Jezebel, who calls herself a prophetess, to teach my servants that sex sin is not a serious matter; she urges them to practice immortality and to eat meat that has been sacrificed to idols. (21) I gave her time to change her mind and attitude, but she refused. (22) Pay attention now to what I am saying: I will lay her upon a sickbed of intense affliction, along with all her immoral flowers, unless they turn again to me, repenting of their sin with her;
(23) and I will strike her children dead. And all the churches shall know that I am he who searches deep within men’s hearts and minds; I will give to each of you whatever you deserve.(24, 25) "As for the rest of you in Thyatira who have not followed this false teaching ("deeper truths," as they call them, depths of Satan, really), I will ask nothing further of you; only hold tightly to what you have until I come. (26) "To every one who overcomes, who to the very end keeps on doing things that please me. I will give power over the nations. (27) "You will rule them with a rod of iron just as my Father gave me the authority to rule them; they will be shattered like a pot of clay that is broken into tiny pieces. (28) And I will give you the Morning Star!

"Let all who can hear, listen to what the Spirit says to the churches.